113705161 has 2 divisors, whose sum is σ = 113705162. Its totient is φ = 113705160.

The previous prime is 113705153. The next prime is 113705191. The reversal of 113705161 is 161507311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 26842761 = 9320^2 + 5181^2 .

It is a cyclic number.

It is not a de Polignac number, because 113705161 - 2³ = 113705153 is a prime.

It is not a weakly prime, because it can be changed into another prime (113705131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56852580 + 56852581.

It is an arithmetic number, because the mean of its divisors is an integer number (56852581).

Almost surely, 2^113705161 is an apocalyptic number.

It is an amenable number.

113705161 is a deficient number, since it is larger than the sum of its proper divisors (1).

113705161 is an equidigital number, since it uses as much as digits as its factorization.

113705161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 113705161 is about 10663.2622119125. The cubic root of 113705161 is about 484.4623808558.

The spelling of 113705161 in words is "one hundred thirteen million, seven hundred five thousand, one hundred sixty-one".