113203156 has 12 divisors (see below), whose sum is σ = 216115200. Its totient is φ = 51455960.

The previous prime is 113203109. The next prime is 113203157. The reversal of 113203156 is 651302311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113203157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286356 + ... + 1286443.

It is an arithmetic number, because the mean of its divisors is an integer number (18009600).

Almost surely, 2^113203156 is an apocalyptic number.

It is an amenable number.

113203156 is a deficient number, since it is larger than the sum of its proper divisors (102912044).

113203156 is a wasteful number, since it uses less digits than its factorization.

113203156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572814 (or 2572812 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 113203156 is about 10639.6971761418. The cubic root of 113203156 is about 483.7483665679.

Adding to 113203156 its reverse (651302311), we get a palindrome (764505467).

The spelling of 113203156 in words is "one hundred thirteen million, two hundred three thousand, one hundred fifty-six".