157919 has 4 divisors (see below), whose sum is σ = 160344. Its totient is φ = 155496.

The previous prime is 157907. The next prime is 157931. The reversal of 157919 is 919751.

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

It is an interprime number because it is at equal distance from previous prime (157907) and next prime (157931).

It is a cyclic number.

It is not a de Polignac number, because 157919 - 2¹⁶ = 92383 is a prime.

It is a super-2 number, since 2×157919² = 49876821122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112 + ... + 1245.

It is an arithmetic number, because the mean of its divisors is an integer number (40086).

2¹⁵⁷⁹¹⁹ is an apocalyptic number.

157919 is a deficient number, since it is larger than the sum of its proper divisors (2425).

157919 is an equidigital number, since it uses as much as digits as its factorization.

157919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424.

The product of its digits is 2835, while the sum is 32.

The square root of 157919 is about 397.3902364176. The cubic root of 157919 is about 54.0519618717.

The spelling of 157919 in words is "one hundred fifty-seven thousand, nine hundred nineteen".