131985474 has 8 divisors (see below), whose sum is σ = 263970960. Its totient is φ = 43995156.

The previous prime is 131985443. The next prime is 131985479. The reversal of 131985474 is 474589131.

It is a happy number.

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

131985474 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131985479) 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, 10998784 + ... + 10998795.

It is an arithmetic number, because the mean of its divisors is an integer number (32996370).

Almost surely, 2^131985474 is an apocalyptic number.

131985474 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.

131985474 is a wasteful number, since it uses less digits than its factorization.

131985474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21997584.

The product of its digits is 120960, while the sum is 42.

The square root of 131985474 is about 11488.4931126758. The cubic root of 131985474 is about 509.1456592072.

The spelling of 131985474 in words is "one hundred thirty-one million, nine hundred eighty-five thousand, four hundred seventy-four".