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125745227 = 251500977
BaseRepresentation
bin1110111111010…
…11100001001011
322202121112000122
413133223201023
5224142321402
620251053455
73054550106
oct737534113
9282545018
10125745227
1164a86283
123614128b
1320088c7a
14129b373d
15b08cca2
hex77eb84b

125745227 has 4 divisors (see below), whose sum is σ = 126246456. Its totient is φ = 125244000.

The previous prime is 125745199. The next prime is 125745233. The reversal of 125745227 is 722547521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722547521 = 4657155153.

It is a cyclic number.

It is not a de Polignac number, because 125745227 - 214 = 125728843 is a prime.

It is a super-2 number, since 2×1257452272 = 31623724226563058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125741227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250238 + ... + 250739.

It is an arithmetic number, because the mean of its divisors is an integer number (31561614).

Almost surely, 2125745227 is an apocalyptic number.

125745227 is a deficient number, since it is larger than the sum of its proper divisors (501229).

125745227 is an equidigital number, since it uses as much as digits as its factorization.

125745227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501228.

The product of its digits is 39200, while the sum is 35.

The square root of 125745227 is about 11213.6179264321. The cubic root of 125745227 is about 500.9916678893.

The spelling of 125745227 in words is "one hundred twenty-five million, seven hundred forty-five thousand, two hundred twenty-seven".

Divisors: 1 251 500977 125745227