156101081 has 2 divisors, whose sum is σ = 156101082. Its totient is φ = 156101080.

The previous prime is 156101047. The next prime is 156101107. The reversal of 156101081 is 180101651.

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., 141015625 + 15085456 = 11875^2 + 3884^2 .

It is a cyclic number.

It is not a de Polignac number, because 156101081 - 2²⁶ = 88992217 is a prime.

It is a super-2 number, since 2×156101081² = 48735094978737122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (156101581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78050540 + 78050541.

It is an arithmetic number, because the mean of its divisors is an integer number (78050541).

Almost surely, 2^156101081 is an apocalyptic number.

It is an amenable number.

156101081 is a deficient number, since it is larger than the sum of its proper divisors (1).

156101081 is an equidigital number, since it uses as much as digits as its factorization.

156101081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 156101081 is about 12494.0418200036. The cubic root of 156101081 is about 538.4375054459.

The spelling of 156101081 in words is "one hundred fifty-six million, one hundred one thousand, eighty-one".