157619923 has 2 divisors, whose sum is σ = 157619924. Its totient is φ = 157619922.

The previous prime is 157619911. The next prime is 157619927. The reversal of 157619923 is 329916751.

157619923 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157619923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157619923.

It is not a weakly prime, because it can be changed into another prime (157619927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78809961 + 78809962.

It is an arithmetic number, because the mean of its divisors is an integer number (78809962).

Almost surely, 2^157619923 is an apocalyptic number.

157619923 is a deficient number, since it is larger than the sum of its proper divisors (1).

157619923 is an equidigital number, since it uses as much as digits as its factorization.

157619923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 43.

The square root of 157619923 is about 12554.6773355590. The cubic root of 157619923 is about 540.1781796555.

The spelling of 157619923 in words is "one hundred fifty-seven million, six hundred nineteen thousand, nine hundred twenty-three".