182131998 has 8 divisors (see below), whose sum is σ = 364264008. Its totient is φ = 60710664.

The previous prime is 182131993. The next prime is 182132017. The reversal of 182131998 is 899131281.

It is a sphenic number, since it is the product of 3 distinct primes.

182131998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182131991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15177661 + ... + 15177672.

It is an arithmetic number, because the mean of its divisors is an integer number (45533001).

Almost surely, 2^182131998 is an apocalyptic number.

182131998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

182131998 is a wasteful number, since it uses less digits than its factorization.

182131998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30355338.

The product of its digits is 31104, while the sum is 42.

The square root of 182131998 is about 13495.6288478900. The cubic root of 182131998 is about 566.8420812572.

The spelling of 182131998 in words is "one hundred eighty-two million, one hundred thirty-one thousand, nine hundred ninety-eight".