113155144 has 8 divisors (see below), whose sum is σ = 212165910. Its totient is φ = 56577568.

The previous prime is 113155123. The next prime is 113155151. The reversal of 113155144 is 441551311.

It can be written as a sum of positive squares in only one way, i.e., 99002500 + 14152644 = 9950^2 + 3762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×113155144² = 25608173227321472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7072189 + ... + 7072204.

Almost surely, 2^113155144 is an apocalyptic number.

It is an amenable number.

113155144 is a deficient number, since it is larger than the sum of its proper divisors (99010766).

113155144 is a wasteful number, since it uses less digits than its factorization.

113155144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144399 (or 14144395 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 113155144 is about 10637.4406696348. The cubic root of 113155144 is about 483.6799673828.

The spelling of 113155144 in words is "one hundred thirteen million, one hundred fifty-five thousand, one hundred forty-four".