252131982 has 8 divisors (see below), whose sum is σ = 504263976. Its totient is φ = 84043992.

The previous prime is 252131969. The next prime is 252132007. The reversal of 252131982 is 289131252.

It is a happy number.

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

252131982 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21010993 + ... + 21011004.

It is an arithmetic number, because the mean of its divisors is an integer number (63032997).

Almost surely, 2^252131982 is an apocalyptic number.

252131982 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.

252131982 is a wasteful number, since it uses less digits than its factorization.

252131982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42022002.

The product of its digits is 8640, while the sum is 33.

The square root of 252131982 is about 15878.6643644861. The cubic root of 252131982 is about 631.7462111251.

The spelling of 252131982 in words is "two hundred fifty-two million, one hundred thirty-one thousand, nine hundred eighty-two".