156104161 has 2 divisors, whose sum is σ = 156104162. Its totient is φ = 156104160.

The previous prime is 156104153. The next prime is 156104167. The reversal of 156104161 is 161401651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119574225 + 36529936 = 10935^2 + 6044^2 .

It is a cyclic number.

It is not a de Polignac number, because 156104161 - 2³ = 156104153 is a prime.

It is not a weakly prime, because it can be changed into another prime (156104167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78052080 + 78052081.

It is an arithmetic number, because the mean of its divisors is an integer number (78052081).

Almost surely, 2^156104161 is an apocalyptic number.

It is an amenable number.

156104161 is a deficient number, since it is larger than the sum of its proper divisors (1).

156104161 is an equidigital number, since it uses as much as digits as its factorization.

156104161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 156104161 is about 12494.1650781475. The cubic root of 156104161 is about 538.4410466911.

The spelling of 156104161 in words is "one hundred fifty-six million, one hundred four thousand, one hundred sixty-one".