7522128 has 30 divisors (see below), whose sum is σ = 21051914. Its totient is φ = 2507328.

The previous prime is 7522111. The next prime is 7522159. The reversal of 7522128 is 8212257.

It can be written as a sum of positive squares in only one way, i.e., 6110784 + 1411344 = 2472^2 + 1188^2 .

It is an Ulam number.

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 5 ways as a sum of consecutive naturals, for example, 25975 + ... + 26262.

Almost surely, 2^7522128 is an apocalyptic number.

It is an amenable number.

7522128 is an abundant number, since it is smaller than the sum of its proper divisors (13529786).

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

7522128 is a wasteful number, since it uses less digits than its factorization.

7522128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52251 (or 52242 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 7522128 is about 2742.6498135927. The cubic root of 7522128 is about 195.9357001353.

The spelling of 7522128 in words is "seven million, five hundred twenty-two thousand, one hundred twenty-eight".