131245431755 has 64 divisors (see below), whose sum is σ = 175421915136. Its totient is φ = 93816576000.

The previous prime is 131245431703. The next prime is 131245431767. The reversal of 131245431755 is 557134542131.

It is not a de Polignac number, because 131245431755 - 2²² = 131241237451 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 78920054 + ... + 78921716.

It is an arithmetic number, because the mean of its divisors is an integer number (2740967424).

Almost surely, 2^131245431755 is an apocalyptic number.

131245431755 is a deficient number, since it is larger than the sum of its proper divisors (44176483381).

131245431755 is a wasteful number, since it uses less digits than its factorization.

131245431755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its digits is 252000, while the sum is 41.

Adding to 131245431755 its reverse (557134542131), we get a palindrome (688379973886).

The spelling of 131245431755 in words is "one hundred thirty-one billion, two hundred forty-five million, four hundred thirty-one thousand, seven hundred fifty-five".