131259402559 has 16 divisors (see below), whose sum is σ = 139268681856. Its totient is φ = 123282432000.

The previous prime is 131259402541. The next prime is 131259402607. The reversal of 131259402559 is 955204952131.

It is a cyclic number.

It is not a de Polignac number, because 131259402559 - 2¹³ = 131259394367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131259432559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18596359 + ... + 18603415.

It is an arithmetic number, because the mean of its divisors is an integer number (8704292616).

Almost surely, 2^131259402559 is an apocalyptic number.

131259402559 is a deficient number, since it is larger than the sum of its proper divisors (8009279297).

131259402559 is a wasteful number, since it uses less digits than its factorization.

131259402559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9186.

The product of its (nonzero) digits is 486000, while the sum is 46.

The spelling of 131259402559 in words is "one hundred thirty-one billion, two hundred fifty-nine million, four hundred two thousand, five hundred fifty-nine".