125140137791 has 2 divisors, whose sum is σ = 125140137792. Its totient is φ = 125140137790.

The previous prime is 125140137767. The next prime is 125140137797. The reversal of 125140137791 is 197731041521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125140137791 - 2¹⁰ = 125140136767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125140137797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62570068895 + 62570068896.

It is an arithmetic number, because the mean of its divisors is an integer number (62570068896).

Almost surely, 2^125140137791 is an apocalyptic number.

125140137791 is a deficient number, since it is larger than the sum of its proper divisors (1).

125140137791 is an equidigital number, since it uses as much as digits as its factorization.

125140137791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 125140137791 in words is "one hundred twenty-five billion, one hundred forty million, one hundred thirty-seven thousand, seven hundred ninety-one".