45123572 has 48 divisors (see below), whose sum is σ = 89376000. Its totient is φ = 19792512.

The previous prime is 45123557. The next prime is 45123583. The reversal of 45123572 is 27532154.

It is a happy number.

45123572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45123572² = 4072273500078368, which contains 22 as substring.

Its product of digits (8400) is a multiple of the sum of its prime factors (600).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90179 + ... + 90677.

It is an arithmetic number, because the mean of its divisors is an integer number (1862000).

Almost surely, 2^45123572 is an apocalyptic number.

It is an amenable number.

45123572 is a deficient number, since it is larger than the sum of its proper divisors (44252428).

45123572 is a wasteful number, since it uses less digits than its factorization.

45123572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 598 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 45123572 is about 6717.4081311172. The cubic root of 45123572 is about 356.0146124541.

The spelling of 45123572 in words is "forty-five million, one hundred twenty-three thousand, five hundred seventy-two".