113513225 has 48 divisors (see below), whose sum is σ = 169179648. Its totient is φ = 73923840.

The previous prime is 113513219. The next prime is 113513243. The reversal of 113513225 is 522315311.

It is a happy number.

It is not a de Polignac number, because 113513225 - 2¹² = 113509129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113513225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304139 + ... + 304511.

It is an arithmetic number, because the mean of its divisors is an integer number (3524576).

Almost surely, 2^113513225 is an apocalyptic number.

It is an amenable number.

113513225 is a deficient number, since it is larger than the sum of its proper divisors (55666423).

113513225 is a wasteful number, since it uses less digits than its factorization.

113513225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 469 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 113513225 is about 10654.2585382560. The cubic root of 113513225 is about 484.1896341007.

Adding to 113513225 its reverse (522315311), we get a palindrome (635828536).

The spelling of 113513225 in words is "one hundred thirteen million, five hundred thirteen thousand, two hundred twenty-five".