131488398 has 24 divisors (see below), whose sum is σ = 299886600. Its totient is φ = 41522544.

The previous prime is 131488397. The next prime is 131488429. The reversal of 131488398 is 893884131.

131488398 is a `hidden beast` number, since 131 + 488 + 39 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131488397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191893 + ... + 192576.

It is an arithmetic number, because the mean of its divisors is an integer number (12495275).

Almost surely, 2^131488398 is an apocalyptic number.

131488398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131488398 is an abundant number, since it is smaller than the sum of its proper divisors (168398202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131488398 is a wasteful number, since it uses less digits than its factorization.

131488398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384496 (or 384493 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 131488398 is about 11466.8390587816. The cubic root of 131488398 is about 508.5056835510.

The spelling of 131488398 in words is "one hundred thirty-one million, four hundred eighty-eight thousand, three hundred ninety-eight".