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130124551 = 392933119
BaseRepresentation
bin1111100000110…
…00101100000111
3100001212000022211
413300120230013
5231302441201
620525004251
73140016604
oct760305407
9301760284
10130124551
11674a7557
12376b3687
1320c6039b
14133d36ab
15b655651
hex7c18b07

130124551 has 4 divisors (see below), whose sum is σ = 130161600. Its totient is φ = 130087504.

The previous prime is 130124543. The next prime is 130124573. The reversal of 130124551 is 155421031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155421031 = 1071452533.

It is a cyclic number.

It is not a de Polignac number, because 130124551 - 23 = 130124543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130125551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12631 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (32540400).

Almost surely, 2130124551 is an apocalyptic number.

130124551 is a deficient number, since it is larger than the sum of its proper divisors (37049).

130124551 is an equidigital number, since it uses as much as digits as its factorization.

130124551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37048.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 130124551 is about 11407.2148660398. The cubic root of 130124551 is about 506.7414323436.

Adding to 130124551 its reverse (155421031), we get a palindrome (285545582).

It can be divided in two parts, 1301 and 24551, that added together give a palindrome (25852).

The spelling of 130124551 in words is "one hundred thirty million, one hundred twenty-four thousand, five hundred fifty-one".

Divisors: 1 3929 33119 130124551