113315161 has 2 divisors, whose sum is σ = 113315162. Its totient is φ = 113315160.

The previous prime is 113315129. The next prime is 113315171. The reversal of 113315161 is 161513311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82011136 + 31304025 = 9056^2 + 5595^2 .

It is a cyclic number.

It is not a de Polignac number, because 113315161 - 2⁵ = 113315129 is a prime.

It is not a weakly prime, because it can be changed into another prime (113315171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56657580 + 56657581.

It is an arithmetic number, because the mean of its divisors is an integer number (56657581).

Almost surely, 2^113315161 is an apocalyptic number.

It is an amenable number.

113315161 is a deficient number, since it is larger than the sum of its proper divisors (1).

113315161 is an equidigital number, since it uses as much as digits as its factorization.

113315161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 22.

The square root of 113315161 is about 10644.9594174896. The cubic root of 113315161 is about 483.9078567504.

Adding to 113315161 its reverse (161513311), we get a palindrome (274828472).

The spelling of 113315161 in words is "one hundred thirteen million, three hundred fifteen thousand, one hundred sixty-one".