113649913 has 16 divisors (see below), whose sum is σ = 131435136. Its totient is φ = 97332480.

The previous prime is 113649911. The next prime is 113649917. The reversal of 113649913 is 319946311.

It is not a de Polignac number, because 113649913 - 2¹ = 113649911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113649911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12070 + ... + 19312.

It is an arithmetic number, because the mean of its divisors is an integer number (8214696).

Almost surely, 2^113649913 is an apocalyptic number.

113649913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113649913 is a deficient number, since it is larger than the sum of its proper divisors (17785223).

113649913 is a wasteful number, since it uses less digits than its factorization.

113649913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344.

The product of its digits is 17496, while the sum is 37.

The square root of 113649913 is about 10660.6713203250. The cubic root of 113649913 is about 484.3839032869.

The spelling of 113649913 in words is "one hundred thirteen million, six hundred forty-nine thousand, nine hundred thirteen".