125314775819 has 2 divisors, whose sum is σ = 125314775820. Its totient is φ = 125314775818.

The previous prime is 125314775791. The next prime is 125314775857. The reversal of 125314775819 is 918577413521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125314775819 - 2³⁶ = 56595299083 is a prime.

It is a super-2 number, since 2×125314775819² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (125314775419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62657387909 + 62657387910.

It is an arithmetic number, because the mean of its divisors is an integer number (62657387910).

Almost surely, 2^125314775819 is an apocalyptic number.

125314775819 is a deficient number, since it is larger than the sum of its proper divisors (1).

125314775819 is an equidigital number, since it uses as much as digits as its factorization.

125314775819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 53.

The spelling of 125314775819 in words is "one hundred twenty-five billion, three hundred fourteen million, seven hundred seventy-five thousand, eight hundred nineteen".