157980719 has 8 divisors (see below), whose sum is σ = 176000160. Its totient is φ = 140799456.

The previous prime is 157980689. The next prime is 157980733. The reversal of 157980719 is 917089751.

157980719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157980719 - 2²⁰ = 156932143 is a prime.

It is a super-2 number, since 2×157980719² = 49915815151513922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157980799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209147 + ... + 209900.

It is an arithmetic number, because the mean of its divisors is an integer number (22000020).

Almost surely, 2^157980719 is an apocalyptic number.

157980719 is a deficient number, since it is larger than the sum of its proper divisors (18019441).

157980719 is a wasteful number, since it uses less digits than its factorization.

157980719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419089.

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 157980719 is about 12569.0381095770. The cubic root of 157980719 is about 540.5900260891.

The spelling of 157980719 in words is "one hundred fifty-seven million, nine hundred eighty thousand, seven hundred nineteen".