125854344523 has 2 divisors, whose sum is σ = 125854344524. Its totient is φ = 125854344522.

The previous prime is 125854344479. The next prime is 125854344599. The reversal of 125854344523 is 325443458521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125854344523 is a prime.

It is not a weakly prime, because it can be changed into another prime (125854344323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62927172261 + 62927172262.

It is an arithmetic number, because the mean of its divisors is an integer number (62927172262).

Almost surely, 2^125854344523 is an apocalyptic number.

125854344523 is a deficient number, since it is larger than the sum of its proper divisors (1).

125854344523 is an equidigital number, since it uses as much as digits as its factorization.

125854344523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304000, while the sum is 46.

The spelling of 125854344523 in words is "one hundred twenty-five billion, eight hundred fifty-four million, three hundred forty-four thousand, five hundred twenty-three".