113965943 has 32 divisors (see below), whose sum is σ = 155022336. Its totient is φ = 81151488.

The previous prime is 113965919. The next prime is 113965949. The reversal of 113965943 is 349569311.

It is a cyclic number.

It is not a de Polignac number, because 113965943 - 2²⁰ = 112917367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113965943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113965949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33980 + ... + 37182.

It is an arithmetic number, because the mean of its divisors is an integer number (4844448).

Almost surely, 2^113965943 is an apocalyptic number.

113965943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113965943 is a deficient number, since it is larger than the sum of its proper divisors (41056393).

113965943 is a wasteful number, since it uses less digits than its factorization.

113965943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263.

The product of its digits is 87480, while the sum is 41.

The square root of 113965943 is about 10675.4832677495. The cubic root of 113965943 is about 484.8324684415.

The spelling of 113965943 in words is "one hundred thirteen million, nine hundred sixty-five thousand, nine hundred forty-three".