125000012497 has 2 divisors, whose sum is σ = 125000012498. Its totient is φ = 125000012496.

The previous prime is 125000012471. The next prime is 125000012563. The reversal of 125000012497 is 794210000521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111692313616 + 13307698881 = 334204^2 + 115359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125000012497 is a prime.

It is not a weakly prime, because it can be changed into another prime (125000012297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500006248 + 62500006249.

It is an arithmetic number, because the mean of its divisors is an integer number (62500006249).

Almost surely, 2^125000012497 is an apocalyptic number.

It is an amenable number.

125000012497 is a deficient number, since it is larger than the sum of its proper divisors (1).

125000012497 is an equidigital number, since it uses as much as digits as its factorization.

125000012497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 125000012497 in words is "one hundred twenty-five billion, twelve thousand, four hundred ninety-seven".