131045535191 has 2 divisors, whose sum is σ = 131045535192. Its totient is φ = 131045535190.

The previous prime is 131045535169. The next prime is 131045535221. The reversal of 131045535191 is 191535540131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131045535191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131045537191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65522767595 + 65522767596.

It is an arithmetic number, because the mean of its divisors is an integer number (65522767596).

Almost surely, 2^131045535191 is an apocalyptic number.

131045535191 is a deficient number, since it is larger than the sum of its proper divisors (1).

131045535191 is an equidigital number, since it uses as much as digits as its factorization.

131045535191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 131045535191 in words is "one hundred thirty-one billion, forty-five million, five hundred thirty-five thousand, one hundred ninety-one".