155975982 has 16 divisors (see below), whose sum is σ = 312090240. Its totient is φ = 51968952.

The previous prime is 155975929. The next prime is 155975983. The reversal of 155975982 is 289579551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155975983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14253 + ... + 22695.

It is an arithmetic number, because the mean of its divisors is an integer number (19505640).

Almost surely, 2^155975982 is an apocalyptic number.

155975982 is an abundant number, since it is smaller than the sum of its proper divisors (156114258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155975982 is a wasteful number, since it uses less digits than its factorization.

155975982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11527.

The product of its digits is 1134000, while the sum is 51.

The square root of 155975982 is about 12489.0344702863. The cubic root of 155975982 is about 538.2936328676.

The spelling of 155975982 in words is "one hundred fifty-five million, nine hundred seventy-five thousand, nine hundred eighty-two".