131953398 has 16 divisors (see below), whose sum is σ = 264607680. Its totient is φ = 43867656.

The previous prime is 131953397. The next prime is 131953399. The reversal of 131953398 is 893359131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131953397) and next prime (131953399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131953397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26740 + ... + 31287.

It is an arithmetic number, because the mean of its divisors is an integer number (16537980).

Almost surely, 2^131953398 is an apocalyptic number.

131953398 is an abundant number, since it is smaller than the sum of its proper divisors (132654282).

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

131953398 is a wasteful number, since it uses less digits than its factorization.

131953398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58411.

The product of its digits is 87480, while the sum is 42.

The square root of 131953398 is about 11487.0970223116. The cubic root of 131953398 is about 509.1044105282.

The spelling of 131953398 in words is "one hundred thirty-one million, nine hundred fifty-three thousand, three hundred ninety-eight".