125149675226 has 4 divisors (see below), whose sum is σ = 187724512842. Its totient is φ = 62574837612.

The previous prime is 125149675219. The next prime is 125149675241. The reversal of 125149675226 is 622576941521.

It is a Cunningham number, because it is equal to 353765²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622576941521 = 75641 ⋅8230681.

It can be written as a sum of positive squares in only one way, i.e., 125149675225 + 1 = 353765^2 + 1^2 .

It is an unprimeable number.

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, 31287418805 + ... + 31287418808.

Almost surely, 2^125149675226 is an apocalyptic number.

125149675226 is a deficient number, since it is larger than the sum of its proper divisors (62574837616).

125149675226 is an equidigital number, since it uses as much as digits as its factorization.

125149675226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62574837615.

The product of its digits is 1814400, while the sum is 50.

The spelling of 125149675226 in words is "one hundred twenty-five billion, one hundred forty-nine million, six hundred seventy-five thousand, two hundred twenty-six".