71190925 has 24 divisors (see below), whose sum is σ = 96884424. Its totient is φ = 51567360.

The previous prime is 71190907. The next prime is 71190937. The reversal of 71190925 is 52909117.

It can be written as a sum of positive squares in 12 ways, for example, as 15792676 + 55398249 = 3974^2 + 7443^2 .

It is not a de Polignac number, because 71190925 - 2⁵ = 71190893 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 15159 + ... + 19291.

It is an arithmetic number, because the mean of its divisors is an integer number (4036851).

Almost surely, 2^71190925 is an apocalyptic number.

It is an amenable number.

71190925 is a deficient number, since it is larger than the sum of its proper divisors (25693499).

71190925 is a wasteful number, since it uses less digits than its factorization.

71190925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 71190925 is about 8437.4714814333. The cubic root of 71190925 is about 414.4526097005.

The spelling of 71190925 in words is "seventy-one million, one hundred ninety thousand, nine hundred twenty-five".