131708998 has 4 divisors (see below), whose sum is σ = 197563500. Its totient is φ = 65854498.

The previous prime is 131708989. The next prime is 131708999. The reversal of 131708998 is 899807131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899807131 = 10651 ⋅84481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131708999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32927248 + ... + 32927251.

It is an arithmetic number, because the mean of its divisors is an integer number (49390875).

Almost surely, 2^131708998 is an apocalyptic number.

131708998 is a deficient number, since it is larger than the sum of its proper divisors (65854502).

131708998 is an equidigital number, since it uses as much as digits as its factorization.

131708998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65854501.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 131708998 is about 11476.4540690929. The cubic root of 131708998 is about 508.7899004619.

The spelling of 131708998 in words is "one hundred thirty-one million, seven hundred eight thousand, nine hundred ninety-eight".