131981362 has 8 divisors (see below), whose sum is σ = 202576176. Its totient is φ = 64455972.

The previous prime is 131981351. The next prime is 131981363. The reversal of 131981362 is 263189131.

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

It is not an unprimeable number, because it can be changed into a prime (131981363) 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, 767248 + ... + 767419.

It is an arithmetic number, because the mean of its divisors is an integer number (25322022).

Almost surely, 2^131981362 is an apocalyptic number.

131981362 is a deficient number, since it is larger than the sum of its proper divisors (70594814).

131981362 is a wasteful number, since it uses less digits than its factorization.

131981362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534712.

The product of its digits is 7776, while the sum is 34.

The square root of 131981362 is about 11488.3141496044. The cubic root of 131981362 is about 509.1403716842.

The spelling of 131981362 in words is "one hundred thirty-one million, nine hundred eighty-one thousand, three hundred sixty-two".