131398594 has 8 divisors (see below), whose sum is σ = 203894460. Its totient is φ = 63433776.

The previous prime is 131398577. The next prime is 131398643. The reversal of 131398594 is 495893131.

131398594 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 124612569 + 6786025 = 11163^2 + 2605^2 .

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 131398594.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132689 + ... + 1132804.

Almost surely, 2^131398594 is an apocalyptic number.

131398594 is a deficient number, since it is larger than the sum of its proper divisors (72495866).

131398594 is a wasteful number, since it uses less digits than its factorization.

131398594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265524.

The product of its digits is 116640, while the sum is 43.

The square root of 131398594 is about 11462.9225767254. The cubic root of 131398594 is about 508.3898907122.

The spelling of 131398594 in words is "one hundred thirty-one million, three hundred ninety-eight thousand, five hundred ninety-four".