113379905 has 16 divisors (see below), whose sum is σ = 138426960. Its totient is φ = 89137152.

The previous prime is 113379901. The next prime is 113379941. The reversal of 113379905 is 509973311.

It is a Cunningham number, because it is equal to 22⁶+1.

It can be written as a sum of positive squares in 8 ways, for example, as 13719616 + 99660289 = 3704^2 + 9983^2 .

It is a cyclic number.

It is not a de Polignac number, because 113379905 - 2² = 113379901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113379901) 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, 75401 + ... + 76889.

It is an arithmetic number, because the mean of its divisors is an integer number (8651685).

Almost surely, 2^113379905 is an apocalyptic number.

It is an amenable number.

113379905 is a deficient number, since it is larger than the sum of its proper divisors (25047055).

113379905 is a wasteful number, since it uses less digits than its factorization.

113379905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 113379905 is about 10648.0000469572. Note that the first 4 decimals coincide. The cubic root of 113379905 is about 484.0000014229. Note that the first 5 decimals are identical.

The spelling of 113379905 in words is "one hundred thirteen million, three hundred seventy-nine thousand, nine hundred five".