156412271 has 2 divisors, whose sum is σ = 156412272. Its totient is φ = 156412270.

The previous prime is 156412261. The next prime is 156412273. The reversal of 156412271 is 172214651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 156412271 - 2²⁶ = 89303407 is a prime.

Together with 156412273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156412273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78206135 + 78206136.

It is an arithmetic number, because the mean of its divisors is an integer number (78206136).

Almost surely, 2^156412271 is an apocalyptic number.

156412271 is a deficient number, since it is larger than the sum of its proper divisors (1).

156412271 is an equidigital number, since it uses as much as digits as its factorization.

156412271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 156412271 is about 12506.4891556344. The cubic root of 156412271 is about 538.7950625435.

The spelling of 156412271 in words is "one hundred fifty-six million, four hundred twelve thousand, two hundred seventy-one".