45072128 has 18 divisors (see below), whose sum is σ = 89968704. Its totient is φ = 22535936.

The previous prime is 45072121. The next prime is 45072143. The reversal of 45072128 is 82127054.

It is a self number, because there is not a number n which added to its sum of digits gives 45072128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45072121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87776 + ... + 88287.

Almost surely, 2^45072128 is an apocalyptic number.

It is an amenable number.

45072128 is a deficient number, since it is larger than the sum of its proper divisors (44896576).

45072128 is an equidigital number, since it uses as much as digits as its factorization.

45072128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176079 (or 176065 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 45072128 is about 6713.5778836623. The cubic root of 45072128 is about 355.8792672278.

The spelling of 45072128 in words is "forty-five million, seventy-two thousand, one hundred twenty-eight".