125126622499 has 4 divisors (see below), whose sum is σ = 125127646920. Its totient is φ = 125125598080.

The previous prime is 125126622493. The next prime is 125126622521. The reversal of 125126622499 is 994226621521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 125126622499 - 2⁷ = 125126622371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125126622493) 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, 299569 + ... + 583090.

It is an arithmetic number, because the mean of its divisors is an integer number (31281911730).

Almost surely, 2^125126622499 is an apocalyptic number.

125126622499 is a deficient number, since it is larger than the sum of its proper divisors (1024421).

125126622499 is an equidigital number, since it uses as much as digits as its factorization.

125126622499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024420.

The product of its digits is 933120, while the sum is 49.

The spelling of 125126622499 in words is "one hundred twenty-five billion, one hundred twenty-six million, six hundred twenty-two thousand, four hundred ninety-nine".