113047945 has 16 divisors (see below), whose sum is σ = 142647120. Its totient is φ = 85881600.

The previous prime is 113047927. The next prime is 113047969. The reversal of 113047945 is 549740311.

It can be written as a sum of positive squares in 8 ways, for example, as 6215049 + 106832896 = 2493^2 + 10336^2 .

It is a de Polignac number, because none of the positive numbers 2^k-113047945 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113047945.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455 + ... + 15235.

It is an arithmetic number, because the mean of its divisors is an integer number (8915445).

Almost surely, 2^113047945 is an apocalyptic number.

It is an amenable number.

113047945 is a deficient number, since it is larger than the sum of its proper divisors (29599175).

113047945 is a wasteful number, since it uses less digits than its factorization.

113047945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12876.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 113047945 is about 10632.4007166773. The cubic root of 113047945 is about 483.5271789509.

The spelling of 113047945 in words is "one hundred thirteen million, forty-seven thousand, nine hundred forty-five".