113031252 has 18 divisors (see below), whose sum is σ = 285717978. Its totient is φ = 37677072.

The previous prime is 113031227. The next prime is 113031253. The reversal of 113031252 is 252130311.

It can be written as a sum of positive squares in only one way, i.e., 59536656 + 53494596 = 7716^2 + 7314^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113031253) 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, 1569843 + ... + 1569914.

It is an arithmetic number, because the mean of its divisors is an integer number (15873221).

Almost surely, 2^113031252 is an apocalyptic number.

113031252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113031252 is an abundant number, since it is smaller than the sum of its proper divisors (172686726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113031252 is a wasteful number, since it uses less digits than its factorization.

113031252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139767 (or 3139762 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 113031252 is about 10631.6156815415. The cubic root of 113031252 is about 483.5033780862.

Adding to 113031252 its reverse (252130311), we get a palindrome (365161563).

The spelling of 113031252 in words is "one hundred thirteen million, thirty-one thousand, two hundred fifty-two".