158963 has 4 divisors (see below), whose sum is σ = 181680. Its totient is φ = 136248.

The previous prime is 158959. The next prime is 158981. The reversal of 158963 is 369851.

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

It is not a de Polignac number, because 158963 - 2² = 158959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158923) 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, 11348 + ... + 11361.

It is an arithmetic number, because the mean of its divisors is an integer number (45420).

2¹⁵⁸⁹⁶³ is an apocalyptic number.

158963 is a deficient number, since it is larger than the sum of its proper divisors (22717).

158963 is an equidigital number, since it uses as much as digits as its factorization.

158963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22716.

The product of its digits is 6480, while the sum is 32.

The square root of 158963 is about 398.7016428358. The cubic root of 158963 is about 54.1708125689.

The spelling of 158963 in words is "one hundred fifty-eight thousand, nine hundred sixty-three".