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130106551 = 203963809
BaseRepresentation
bin1111100000101…
…00010010110111
3100001211002122011
413300110102313
5231301402201
620524345051
73136613251
oct760242267
9301732564
10130106551
1167494a83
12376a5187
1320c55133
14133cacd1
15b650151
hex7c144b7

130106551 has 4 divisors (see below), whose sum is σ = 130172400. Its totient is φ = 130040704.

The previous prime is 130106533. The next prime is 130106569. The reversal of 130106551 is 155601031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155601031 = 937166063.

It is an interprime number because it is at equal distance from previous prime (130106533) and next prime (130106569).

It is a cyclic number.

It is not a de Polignac number, because 130106551 - 211 = 130104503 is a prime.

It is a super-2 number, since 2×1301065512 = 33855429226231202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130101551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29866 + ... + 33943.

It is an arithmetic number, because the mean of its divisors is an integer number (32543100).

Almost surely, 2130106551 is an apocalyptic number.

130106551 is a deficient number, since it is larger than the sum of its proper divisors (65849).

130106551 is an equidigital number, since it uses as much as digits as its factorization.

130106551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65848.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 130106551 is about 11406.4258643977. The cubic root of 130106551 is about 506.7180655863.

Adding to 130106551 its reverse (155601031), we get a palindrome (285707582).

The spelling of 130106551 in words is "one hundred thirty million, one hundred six thousand, five hundred fifty-one".

Divisors: 1 2039 63809 130106551