125332134209 has 2 divisors, whose sum is σ = 125332134210. Its totient is φ = 125332134208.

The previous prime is 125332134157. The next prime is 125332134253. The reversal of 125332134209 is 902431233521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95901702400 + 29430431809 = 309680^2 + 171553^2 .

It is a cyclic number.

It is not a de Polignac number, because 125332134209 - 2¹² = 125332130113 is a prime.

It is not a weakly prime, because it can be changed into another prime (125332134709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62666067104 + 62666067105.

It is an arithmetic number, because the mean of its divisors is an integer number (62666067105).

Almost surely, 2^125332134209 is an apocalyptic number.

It is an amenable number.

125332134209 is a deficient number, since it is larger than the sum of its proper divisors (1).

125332134209 is an equidigital number, since it uses as much as digits as its factorization.

125332134209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 125332134209 in words is "one hundred twenty-five billion, three hundred thirty-two million, one hundred thirty-four thousand, two hundred nine".