113909945 has 16 divisors (see below), whose sum is σ = 145152000. Its totient is φ = 85519104.

The previous prime is 113909927. The next prime is 113909969. The reversal of 113909945 is 549909311.

It is a cyclic number.

It is not a de Polignac number, because 113909945 - 2⁸ = 113909689 is a prime.

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, 30806 + ... + 34304.

It is an arithmetic number, because the mean of its divisors is an integer number (9072000).

Almost surely, 2^113909945 is an apocalyptic number.

It is an amenable number.

113909945 is a deficient number, since it is larger than the sum of its proper divisors (31242055).

113909945 is a wasteful number, since it uses less digits than its factorization.

113909945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 113909945 is about 10672.8602070860. The cubic root of 113909945 is about 484.7530467716.

The spelling of 113909945 in words is "one hundred thirteen million, nine hundred nine thousand, nine hundred forty-five".