131889308 has 24 divisors (see below), whose sum is σ = 235379760. Its totient is φ = 64644480.

The previous prime is 131889271. The next prime is 131889313. The reversal of 131889308 is 803988131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127160 + ... + 128192.

It is an arithmetic number, because the mean of its divisors is an integer number (9807490).

Almost surely, 2^131889308 is an apocalyptic number.

It is an amenable number.

131889308 is a deficient number, since it is larger than the sum of its proper divisors (103490452).

131889308 is a wasteful number, since it uses less digits than its factorization.

131889308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 131889308 is about 11484.3070317717. The cubic root of 131889308 is about 509.0219728743.

The spelling of 131889308 in words is "one hundred thirty-one million, eight hundred eighty-nine thousand, three hundred eight".