157982 has 16 divisors (see below), whose sum is σ = 266112. Its totient is φ = 69720.

The previous prime is 157951. The next prime is 157991. The reversal of 157982 is 289751.

157982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863 + ... + 1029.

It is an arithmetic number, because the mean of its divisors is an integer number (16632).

2¹⁵⁷⁹⁸² is an apocalyptic number.

157982 is a deficient number, since it is larger than the sum of its proper divisors (108130).

157982 is a wasteful number, since it uses less digits than its factorization.

157982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its digits is 5040, while the sum is 32.

The square root of 157982 is about 397.4694956849. The cubic root of 157982 is about 54.0591487225.

Subtracting 157982 from its reverse (289751), we obtain a square (131769 = 363²).

It can be divided in two parts, 1579 and 82, that added together give a palindrome (1661).

The spelling of 157982 in words is "one hundred fifty-seven thousand, nine hundred eighty-two".