45231912 has 64 divisors (see below), whose sum is σ = 137073600. Its totient is φ = 13705920.

The previous prime is 45231911. The next prime is 45231919. The reversal of 45231912 is 21913254.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45231911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7143 + ... + 11894.

It is an arithmetic number, because the mean of its divisors is an integer number (2141775).

Almost surely, 2^45231912 is an apocalyptic number.

It is an amenable number.

45231912 is an abundant number, since it is smaller than the sum of its proper divisors (91841688).

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

45231912 is a wasteful number, since it uses less digits than its factorization.

45231912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19063 (or 19053 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 45231912 is about 6725.4674187004. The cubic root of 45231912 is about 356.2993106258.

The spelling of 45231912 in words is "forty-five million, two hundred thirty-one thousand, nine hundred twelve".