125391348947 has 2 divisors, whose sum is σ = 125391348948. Its totient is φ = 125391348946.

The previous prime is 125391348937. The next prime is 125391348989. The reversal of 125391348947 is 749843193521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125391348947 - 2¹⁰ = 125391347923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125391348892 and 125391348901.

It is not a weakly prime, because it can be changed into another prime (125391348937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62695674473 + 62695674474.

It is an arithmetic number, because the mean of its divisors is an integer number (62695674474).

Almost surely, 2^125391348947 is an apocalyptic number.

125391348947 is a deficient number, since it is larger than the sum of its proper divisors (1).

125391348947 is an equidigital number, since it uses as much as digits as its factorization.

125391348947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The spelling of 125391348947 in words is "one hundred twenty-five billion, three hundred ninety-one million, three hundred forty-eight thousand, nine hundred forty-seven".