156968423 has 2 divisors, whose sum is σ = 156968424. Its totient is φ = 156968422.

The previous prime is 156968419. The next prime is 156968437. The reversal of 156968423 is 324869651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156968423 - 2² = 156968419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156968453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78484211 + 78484212.

It is an arithmetic number, because the mean of its divisors is an integer number (78484212).

Almost surely, 2^156968423 is an apocalyptic number.

156968423 is a deficient number, since it is larger than the sum of its proper divisors (1).

156968423 is an equidigital number, since it uses as much as digits as its factorization.

156968423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The square root of 156968423 is about 12528.7039632996. The cubic root of 156968423 is about 539.4329014508.

The spelling of 156968423 in words is "one hundred fifty-six million, nine hundred sixty-eight thousand, four hundred twenty-three".