45031572 has 48 divisors (see below), whose sum is σ = 123621120. Its totient is φ = 14126976.

The previous prime is 45031559. The next prime is 45031607. The reversal of 45031572 is 27513054.

It is a happy number.

45031572 is a `hidden beast` number, since 4 + 503 + 157 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10428 + ... + 14099.

It is an arithmetic number, because the mean of its divisors is an integer number (2575440).

Almost surely, 2^45031572 is an apocalyptic number.

It is an amenable number.

45031572 is an abundant number, since it is smaller than the sum of its proper divisors (78589548).

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

45031572 is a wasteful number, since it uses less digits than its factorization.

45031572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24557 (or 24549 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45031572 is about 6710.5567578257. The cubic root of 45031572 is about 355.7724948807.

The spelling of 45031572 in words is "forty-five million, thirty-one thousand, five hundred seventy-two".