157992119 has 4 divisors (see below), whose sum is σ = 158055960. Its totient is φ = 157928280.

The previous prime is 157992113. The next prime is 157992181. The reversal of 157992119 is 911299751.

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 157992119 - 2⁴ = 157992103 is a prime.

It is a super-2 number, since 2×157992119² = 49923019332220322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157992119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157992113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28052 + ... + 33209.

It is an arithmetic number, because the mean of its divisors is an integer number (39513990).

Almost surely, 2^157992119 is an apocalyptic number.

157992119 is a deficient number, since it is larger than the sum of its proper divisors (63841).

157992119 is an equidigital number, since it uses as much as digits as its factorization.

157992119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63840.

The product of its digits is 51030, while the sum is 44.

The square root of 157992119 is about 12569.4915967194. The cubic root of 157992119 is about 540.6030288954.

The spelling of 157992119 in words is "one hundred fifty-seven million, nine hundred ninety-two thousand, one hundred nineteen".