125387947 has 2 divisors, whose sum is σ = 125387948. Its totient is φ = 125387946.

The previous prime is 125387891. The next prime is 125387959. The reversal of 125387947 is 749783521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125387947 - 2¹¹ = 125385899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125387897 and 125387906.

It is not a weakly prime, because it can be changed into another prime (125387047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62693973 + 62693974.

It is an arithmetic number, because the mean of its divisors is an integer number (62693974).

Almost surely, 2^125387947 is an apocalyptic number.

125387947 is a deficient number, since it is larger than the sum of its proper divisors (1).

125387947 is an equidigital number, since it uses as much as digits as its factorization.

125387947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 125387947 is about 11197.6759642347. The cubic root of 125387947 is about 500.5167284661.

The spelling of 125387947 in words is "one hundred twenty-five million, three hundred eighty-seven thousand, nine hundred forty-seven".