113270161 has 2 divisors, whose sum is σ = 113270162. Its totient is φ = 113270160.

The previous prime is 113270159. The next prime is 113270173. The reversal of 113270161 is 161072311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77986561 + 35283600 = 8831^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 113270161 - 2¹ = 113270159 is a prime.

Together with 113270159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (113273161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56635080 + 56635081.

It is an arithmetic number, because the mean of its divisors is an integer number (56635081).

Almost surely, 2^113270161 is an apocalyptic number.

It is an amenable number.

113270161 is a deficient number, since it is larger than the sum of its proper divisors (1).

113270161 is an equidigital number, since it uses as much as digits as its factorization.

113270161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 113270161 is about 10642.8455311538. The cubic root of 113270161 is about 483.8437913698.

The spelling of 113270161 in words is "one hundred thirteen million, two hundred seventy thousand, one hundred sixty-one".