131897382 has 8 divisors (see below), whose sum is σ = 263794776. Its totient is φ = 43965792.

The previous prime is 131897357. The next prime is 131897401. The reversal of 131897382 is 283798131.

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

131897382 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, 10991443 + ... + 10991454.

It is an arithmetic number, because the mean of its divisors is an integer number (32974347).

Almost surely, 2^131897382 is an apocalyptic number.

131897382 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.

131897382 is a wasteful number, since it uses less digits than its factorization.

131897382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21982902.

The product of its digits is 72576, while the sum is 42.

The square root of 131897382 is about 11484.6585495608. The cubic root of 131897382 is about 509.0323597652.

The spelling of 131897382 in words is "one hundred thirty-one million, eight hundred ninety-seven thousand, three hundred eighty-two".