113641905 has 32 divisors (see below), whose sum is σ = 200382336. Its totient is φ = 54641664.

The previous prime is 113641903. The next prime is 113641949. The reversal of 113641905 is 509146311.

It is not a de Polignac number, because 113641905 - 2¹ = 113641903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113641901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1609 + ... + 15161.

It is an arithmetic number, because the mean of its divisors is an integer number (6261948).

Almost surely, 2^113641905 is an apocalyptic number.

113641905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113641905 is a deficient number, since it is larger than the sum of its proper divisors (86740431).

113641905 is a wasteful number, since it uses less digits than its factorization.

113641905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 113641905 is about 10660.2957276053. The cubic root of 113641905 is about 484.3725261337.

The spelling of 113641905 in words is "one hundred thirteen million, six hundred forty-one thousand, nine hundred five".