125134054391 has 2 divisors, whose sum is σ = 125134054392. Its totient is φ = 125134054390.

The previous prime is 125134054373. The next prime is 125134054433. The reversal of 125134054391 is 193450431521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125134054391 - 2⁶ = 125134054327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125134054361) 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, 62567027195 + 62567027196.

It is an arithmetic number, because the mean of its divisors is an integer number (62567027196).

Almost surely, 2^125134054391 is an apocalyptic number.

125134054391 is a deficient number, since it is larger than the sum of its proper divisors (1).

125134054391 is an equidigital number, since it uses as much as digits as its factorization.

125134054391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 125134054391 in words is "one hundred twenty-five billion, one hundred thirty-four million, fifty-four thousand, three hundred ninety-one".