157368161 has 2 divisors, whose sum is σ = 157368162. Its totient is φ = 157368160.

The previous prime is 157368157. The next prime is 157368179. The reversal of 157368161 is 161863751.

157368161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133171600 + 24196561 = 11540^2 + 4919^2 .

It is a cyclic number.

It is not a de Polignac number, because 157368161 - 2² = 157368157 is a prime.

It is not a weakly prime, because it can be changed into another prime (157368151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78684080 + 78684081.

It is an arithmetic number, because the mean of its divisors is an integer number (78684081).

Almost surely, 2^157368161 is an apocalyptic number.

It is an amenable number.

157368161 is a deficient number, since it is larger than the sum of its proper divisors (1).

157368161 is an equidigital number, since it uses as much as digits as its factorization.

157368161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 157368161 is about 12544.6467068627. The cubic root of 157368161 is about 539.8904224389.

The spelling of 157368161 in words is "one hundred fifty-seven million, three hundred sixty-eight thousand, one hundred sixty-one".