125323456539959 has 4 divisors (see below), whose sum is σ = 125639132753304. Its totient is φ = 125007780326616.

The previous prime is 125323456539923. The next prime is 125323456539977. The reversal of 125323456539959 is 959935654323521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125323456539959 - 2¹⁶ = 125323456474423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125323456539892 and 125323456539901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125323456539059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157838106077 + ... + 157838106870.

It is an arithmetic number, because the mean of its divisors is an integer number (31409783188326).

Almost surely, 2^{125323456539959} is an apocalyptic number.

125323456539959 is a deficient number, since it is larger than the sum of its proper divisors (315676213345).

125323456539959 is an equidigital number, since it uses as much as digits as its factorization.

125323456539959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315676213344.

The product of its digits is 1180980000, while the sum is 71.

The spelling of 125323456539959 in words is "one hundred twenty-five trillion, three hundred twenty-three billion, four hundred fifty-six million, five hundred thirty-nine thousand, nine hundred fifty-nine".