72571075 has 12 divisors (see below), whose sum is σ = 90496440. Its totient is φ = 57728960.

The previous prime is 72571069. The next prime is 72571091. The reversal of 72571075 is 57017527.

It is not a de Polignac number, because 72571075 - 2⁵ = 72571043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72571075.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3634 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (7541370).

Almost surely, 2^72571075 is an apocalyptic number.

72571075 is a deficient number, since it is larger than the sum of its proper divisors (17925365).

72571075 is a wasteful number, since it uses less digits than its factorization.

72571075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16406 (or 16401 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 72571075 is about 8518.8658282661. The cubic root of 72571075 is about 417.1137618603.

The spelling of 72571075 in words is "seventy-two million, five hundred seventy-one thousand, seventy-five".