115970161 has 4 divisors (see below), whose sum is σ = 116146800. Its totient is φ = 115793524.

The previous prime is 115970149. The next prime is 115970189. The reversal of 115970161 is 161079511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115970161 - 2¹³ = 115961969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115940161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87331 + ... + 88648.

It is an arithmetic number, because the mean of its divisors is an integer number (29036700).

Almost surely, 2^115970161 is an apocalyptic number.

It is an amenable number.

115970161 is a deficient number, since it is larger than the sum of its proper divisors (176639).

115970161 is an equidigital number, since it uses as much as digits as its factorization.

115970161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176638.

The product of its (nonzero) digits is 1890, while the sum is 31.

The square root of 115970161 is about 10768.9442843763. The cubic root of 115970161 is about 487.6580750580.

The spelling of 115970161 in words is "one hundred fifteen million, nine hundred seventy thousand, one hundred sixty-one".