131297533739 has 2 divisors, whose sum is σ = 131297533740. Its totient is φ = 131297533738.

The previous prime is 131297533691. The next prime is 131297533837. The reversal of 131297533739 is 937335792131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131297533739 - 2³² = 127002566443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131297539739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65648766869 + 65648766870.

It is an arithmetic number, because the mean of its divisors is an integer number (65648766870).

Almost surely, 2^131297533739 is an apocalyptic number.

131297533739 is a deficient number, since it is larger than the sum of its proper divisors (1).

131297533739 is an equidigital number, since it uses as much as digits as its factorization.

131297533739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3214890, while the sum is 53.

The spelling of 131297533739 in words is "one hundred thirty-one billion, two hundred ninety-seven million, five hundred thirty-three thousand, seven hundred thirty-nine".