125452977737 has 2 divisors, whose sum is σ = 125452977738. Its totient is φ = 125452977736.

The previous prime is 125452977731. The next prime is 125452977787. The reversal of 125452977737 is 737779254521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91870216201 + 33582761536 = 303101^2 + 183256^2 .

It is a cyclic number.

It is not a de Polignac number, because 125452977737 - 2¹² = 125452973641 is a prime.

It is not a weakly prime, because it can be changed into another prime (125452977731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62726488868 + 62726488869.

It is an arithmetic number, because the mean of its divisors is an integer number (62726488869).

Almost surely, 2^125452977737 is an apocalyptic number.

It is an amenable number.

125452977737 is a deficient number, since it is larger than the sum of its proper divisors (1).

125452977737 is an equidigital number, since it uses as much as digits as its factorization.

125452977737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25930800, while the sum is 59.

The spelling of 125452977737 in words is "one hundred twenty-five billion, four hundred fifty-two million, nine hundred seventy-seven thousand, seven hundred thirty-seven".