157929019 has 2 divisors, whose sum is σ = 157929020. Its totient is φ = 157929018.

The previous prime is 157929011. The next prime is 157929047. The reversal of 157929019 is 910929751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157929019 - 2³ = 157929011 is a prime.

It is a super-2 number, since 2×157929019² = 49883150084604722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157929011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78964509 + 78964510.

It is an arithmetic number, because the mean of its divisors is an integer number (78964510).

Almost surely, 2^157929019 is an apocalyptic number.

157929019 is a deficient number, since it is larger than the sum of its proper divisors (1).

157929019 is an equidigital number, since it uses as much as digits as its factorization.

157929019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 157929019 is about 12566.9813002169. The cubic root of 157929019 is about 540.5310493695.

The spelling of 157929019 in words is "one hundred fifty-seven million, nine hundred twenty-nine thousand, nineteen".