157019959 has 4 divisors (see below), whose sum is σ = 157045720. Its totient is φ = 156994200.

The previous prime is 157019923. The next prime is 157019977. The reversal of 157019959 is 959910751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157019959 - 2¹⁷ = 156888887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157019909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972 + ... + 17830.

It is an arithmetic number, because the mean of its divisors is an integer number (39261430).

Almost surely, 2^157019959 is an apocalyptic number.

157019959 is a deficient number, since it is larger than the sum of its proper divisors (25761).

157019959 is an equidigital number, since it uses as much as digits as its factorization.

157019959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25760.

The product of its (nonzero) digits is 127575, while the sum is 46.

The square root of 157019959 is about 12530.7605116370. The cubic root of 157019959 is about 539.4919306737.

The spelling of 157019959 in words is "one hundred fifty-seven million, nineteen thousand, nine hundred fifty-nine".