158457 has 16 divisors (see below), whose sum is σ = 241920. Its totient is φ = 91392.

The previous prime is 158449. The next prime is 158489. The reversal of 158457 is 754851.

It is not a de Polignac number, because 158457 - 2³ = 158449 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158457.

It is not an unprimeable number, because it can be changed into a prime (158407) 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 15 ways as a sum of consecutive naturals, for example, 544 + ... + 782.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2¹⁵⁸⁴⁵⁷ is an apocalyptic number.

158457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

158457 is a deficient number, since it is larger than the sum of its proper divisors (83463).

158457 is a wasteful number, since it uses less digits than its factorization.

158457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its digits is 5600, while the sum is 30.

The square root of 158457 is about 398.0665773461. The cubic root of 158457 is about 54.1132738831.

The spelling of 158457 in words is "one hundred fifty-eight thousand, four hundred fifty-seven".