131259597 has 32 divisors (see below), whose sum is σ = 215930880. Its totient is φ = 69263040.

The previous prime is 131259589. The next prime is 131259599. The reversal of 131259597 is 795952131.

It is not a de Polignac number, because 131259597 - 2³ = 131259589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131259599) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9322 + ... + 18692.

It is an arithmetic number, because the mean of its divisors is an integer number (6747840).

Almost surely, 2^131259597 is an apocalyptic number.

It is an amenable number.

131259597 is a deficient number, since it is larger than the sum of its proper divisors (84671283).

131259597 is a wasteful number, since it uses less digits than its factorization.

131259597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433.

The product of its digits is 85050, while the sum is 42.

The square root of 131259597 is about 11456.8580771519. The cubic root of 131259597 is about 508.2105645891.

It can be divided in two parts, 13125 and 9597, that added together give a palindrome (22722).

The spelling of 131259597 in words is "one hundred thirty-one million, two hundred fifty-nine thousand, five hundred ninety-seven".