13913161 has 2 divisors, whose sum is σ = 13913162. Its totient is φ = 13913160.

The previous prime is 13913113. The next prime is 13913197. The reversal of 13913161 is 16131931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9418761 + 4494400 = 3069^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 13913161 - 2¹⁷ = 13782089 is a prime.

It is not a weakly prime, because it can be changed into another prime (13913461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6956580 + 6956581.

It is an arithmetic number, because the mean of its divisors is an integer number (6956581).

Almost surely, 2^13913161 is an apocalyptic number.

It is an amenable number.

13913161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13913161 is an equidigital number, since it uses as much as digits as its factorization.

13913161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 25.

The square root of 13913161 is about 3730.0349864311. The cubic root of 13913161 is about 240.5148726616.

The spelling of 13913161 in words is "thirteen million, nine hundred thirteen thousand, one hundred sixty-one".