153982 has 4 divisors (see below), whose sum is σ = 230976. Its totient is φ = 76990.

The previous prime is 153953. The next prime is 153991. The reversal of 153982 is 289351.

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

It is a self number, because there is not a number n which added to its sum of digits gives 153982.

It is a congruent number.

It is an unprimeable number.

153982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 38494 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (57744).

2¹⁵³⁹⁸² is an apocalyptic number.

153982 is a deficient number, since it is larger than the sum of its proper divisors (76994).

153982 is an equidigital number, since it uses as much as digits as its factorization.

153982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76993.

The product of its digits is 2160, while the sum is 28.

The square root of 153982 is about 392.4054026132. The cubic root of 153982 is about 53.5989956744.

It can be divided in two parts, 15398 and 2, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 153982 in words is "one hundred fifty-three thousand, nine hundred eighty-two".