156906929 has 2 divisors, whose sum is σ = 156906930. Its totient is φ = 156906928.

The previous prime is 156906913. The next prime is 156906931. The reversal of 156906929 is 929609651.

156906929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147573904 + 9333025 = 12148^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 156906929 - 2⁴ = 156906913 is a prime.

It is a super-2 number, since 2×156906929² = 49239568736422082, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 156906931, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (156906949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78453464 + 78453465.

It is an arithmetic number, because the mean of its divisors is an integer number (78453465).

Almost surely, 2^156906929 is an apocalyptic number.

It is an amenable number.

156906929 is a deficient number, since it is larger than the sum of its proper divisors (1).

156906929 is an equidigital number, since it uses as much as digits as its factorization.

156906929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 156906929 is about 12526.2495983435. The cubic root of 156906929 is about 539.3624494474.

The spelling of 156906929 in words is "one hundred fifty-six million, nine hundred six thousand, nine hundred twenty-nine".