131503237775 has 48 divisors (see below), whose sum is σ = 212499774144. Its totient is φ = 78340884480.

The previous prime is 131503237769. The next prime is 131503237777. The reversal of 131503237775 is 577732305131.

It is a happy number.

It is not a de Polignac number, because 131503237775 - 2¹⁸ = 131502975631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131503237777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1661432 + ... + 1738781.

It is an arithmetic number, because the mean of its divisors is an integer number (4427078628).

Almost surely, 2^131503237775 is an apocalyptic number.

131503237775 is a deficient number, since it is larger than the sum of its proper divisors (80996536369).

131503237775 is a wasteful number, since it uses less digits than its factorization.

131503237775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400260 (or 3400255 counting only the distinct ones).

The product of its (nonzero) digits is 463050, while the sum is 44.

The spelling of 131503237775 in words is "one hundred thirty-one billion, five hundred three million, two hundred thirty-seven thousand, seven hundred seventy-five".