971525 has 6 divisors (see below), whose sum is σ = 1204722. Its totient is φ = 777200.

The previous prime is 971521. The next prime is 971549. The reversal of 971525 is 525179.

971525 = 185² + 186² + ... + 209².

971525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 195364 + 776161 = 442^2 + 881^2 .

It is not a de Polignac number, because 971525 - 2² = 971521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19406 + ... + 19455.

It is an arithmetic number, because the mean of its divisors is an integer number (200787).

2⁹⁷¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

971525 is a deficient number, since it is larger than the sum of its proper divisors (233197).

971525 is a wasteful number, since it uses less digits than its factorization.

971525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38871 (or 38866 counting only the distinct ones).

The product of its digits is 3150, while the sum is 29.

The square root of 971525 is about 985.6596775764. The cubic root of 971525 is about 99.0416788763.

The spelling of 971525 in words is "nine hundred seventy-one thousand, five hundred twenty-five".