125074527121 has 2 divisors, whose sum is σ = 125074527122. Its totient is φ = 125074527120.

The previous prime is 125074527113. The next prime is 125074527157. The reversal of 125074527121 is 121725470521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62582026896 + 62492500225 = 250164^2 + 249985^2 .

It is a cyclic number.

It is not a de Polignac number, because 125074527121 - 2³ = 125074527113 is a prime.

It is not a weakly prime, because it can be changed into another prime (125074527521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62537263560 + 62537263561.

It is an arithmetic number, because the mean of its divisors is an integer number (62537263561).

Almost surely, 2^125074527121 is an apocalyptic number.

It is an amenable number.

125074527121 is a deficient number, since it is larger than the sum of its proper divisors (1).

125074527121 is an equidigital number, since it uses as much as digits as its factorization.

125074527121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 37.

Adding to 125074527121 its reverse (121725470521), we get a palindrome (246799997642).

The spelling of 125074527121 in words is "one hundred twenty-five billion, seventy-four million, five hundred twenty-seven thousand, one hundred twenty-one".