131899484 has 12 divisors (see below), whose sum is σ = 235735584. Its totient is φ = 64546464.

The previous prime is 131899477. The next prime is 131899489. The reversal of 131899484 is 484998131.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131899489) 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, 350609 + ... + 350984.

It is an arithmetic number, because the mean of its divisors is an integer number (19644632).

Almost surely, 2^131899484 is an apocalyptic number.

It is an amenable number.

131899484 is a deficient number, since it is larger than the sum of its proper divisors (103836100).

131899484 is a wasteful number, since it uses less digits than its factorization.

131899484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701644 (or 701642 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 131899484 is about 11484.7500625830. The cubic root of 131899484 is about 509.0350638379.

The spelling of 131899484 in words is "one hundred thirty-one million, eight hundred ninety-nine thousand, four hundred eighty-four".