113243985 has 48 divisors (see below), whose sum is σ = 205208640. Its totient is φ = 57697920.

The previous prime is 113243981. The next prime is 113243989. The reversal of 113243985 is 589342311.

It is an interprime number because it is at equal distance from previous prime (113243981) and next prime (113243989).

It is not a de Polignac number, because 113243985 - 2² = 113243981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113243981) 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 47 ways as a sum of consecutive naturals, for example, 139230 + ... + 140040.

It is an arithmetic number, because the mean of its divisors is an integer number (4275180).

Almost surely, 2^113243985 is an apocalyptic number.

113243985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113243985 is a deficient number, since it is larger than the sum of its proper divisors (91964655).

113243985 is a wasteful number, since it uses less digits than its factorization.

113243985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 955 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 113243985 is about 10641.6157137908. The cubic root of 113243985 is about 483.8065174437.

The spelling of 113243985 in words is "one hundred thirteen million, two hundred forty-three thousand, nine hundred eighty-five".