45161256 has 32 divisors (see below), whose sum is σ = 129032640. Its totient is φ = 12903168.

The previous prime is 45161251. The next prime is 45161257. The reversal of 45161256 is 65216154.

It is not an unprimeable number, because it can be changed into a prime (45161251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134241 + ... + 134576.

It is an arithmetic number, because the mean of its divisors is an integer number (4032270).

Almost surely, 2^45161256 is an apocalyptic number.

It is an amenable number.

45161256 is an abundant number, since it is smaller than the sum of its proper divisors (83871384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45161256 is a wasteful number, since it uses less digits than its factorization.

45161256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268833 (or 268829 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 45161256 is about 6720.2124966403. The cubic root of 45161256 is about 356.1136909112.

The spelling of 45161256 in words is "forty-five million, one hundred sixty-one thousand, two hundred fifty-six".