125410023491 has 4 divisors (see below), whose sum is σ = 130862633232. Its totient is φ = 119957413752.

The previous prime is 125410023481. The next prime is 125410023509. The reversal of 125410023491 is 194320014521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125410023491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125410023481) 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, 2726304836 + ... + 2726304881.

It is an arithmetic number, because the mean of its divisors is an integer number (32715658308).

Almost surely, 2^125410023491 is an apocalyptic number.

125410023491 is a deficient number, since it is larger than the sum of its proper divisors (5452609741).

125410023491 is an equidigital number, since it uses as much as digits as its factorization.

125410023491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452609740.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 125410023491 in words is "one hundred twenty-five billion, four hundred ten million, twenty-three thousand, four hundred ninety-one".