131400398 has 8 divisors (see below), whose sum is σ = 197149680. Its totient is φ = 65683840.

The previous prime is 131400397. The next prime is 131400433. The reversal of 131400398 is 893004131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131400398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131400397) 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, 9518 + ... + 18798.

It is an arithmetic number, because the mean of its divisors is an integer number (24643710).

Almost surely, 2^131400398 is an apocalyptic number.

131400398 is a deficient number, since it is larger than the sum of its proper divisors (65749282).

131400398 is an equidigital number, since it uses as much as digits as its factorization.

131400398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16362.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 131400398 is about 11463.0012649393. The cubic root of 131400398 is about 508.3922173001.

Subtracting from 131400398 its sum of digits (29), we obtain a square (131400369 = 11463²).

The spelling of 131400398 in words is "one hundred thirty-one million, four hundred thousand, three hundred ninety-eight".