125291415127 has 2 divisors, whose sum is σ = 125291415128. Its totient is φ = 125291415126.

The previous prime is 125291415091. The next prime is 125291415157. The reversal of 125291415127 is 721514192521.

It is a strong prime.

It is an emirp because it is prime and its reverse (721514192521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125291415127 - 2⁷ = 125291414999 is a prime.

It is a super-2 number, since 2×125291415127² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125291415127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125291415157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62645707563 + 62645707564.

It is an arithmetic number, because the mean of its divisors is an integer number (62645707564).

Almost surely, 2^125291415127 is an apocalyptic number.

125291415127 is a deficient number, since it is larger than the sum of its proper divisors (1).

125291415127 is an equidigital number, since it uses as much as digits as its factorization.

125291415127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The spelling of 125291415127 in words is "one hundred twenty-five billion, two hundred ninety-one million, four hundred fifteen thousand, one hundred twenty-seven".