113021525 has 24 divisors (see below), whose sum is σ = 149916744. Its totient is φ = 84224000.

The previous prime is 113021509. The next prime is 113021549. The reversal of 113021525 is 525120311.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 8532241 + 104489284 = 2921^2 + 10222^2 .

It is not a de Polignac number, because 113021525 - 2⁴ = 113021509 is a prime.

It is a super-2 number, since 2×113021525² = 25547730226651250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113021497 and 113021506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41609 + ... + 44241.

It is an arithmetic number, because the mean of its divisors is an integer number (6246531).

Almost surely, 2^113021525 is an apocalyptic number.

It is an amenable number.

113021525 is a deficient number, since it is larger than the sum of its proper divisors (36895219).

113021525 is a wasteful number, since it uses less digits than its factorization.

113021525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761 (or 2756 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 113021525 is about 10631.1582153592. The cubic root of 113021525 is about 483.4895082576.

Adding to 113021525 its reverse (525120311), we get a palindrome (638141836).

The spelling of 113021525 in words is "one hundred thirteen million, twenty-one thousand, five hundred twenty-five".