125649126 has 24 divisors (see below), whose sum is σ = 276076944. Its totient is φ = 41292720.

The previous prime is 125649119. The next prime is 125649143. The reversal of 125649126 is 621946521.

125649126 is a `hidden beast` number, since 1 + 2 + 5 + 649 + 1 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47881 + ... + 50436.

It is an arithmetic number, because the mean of its divisors is an integer number (11503206).

Almost surely, 2^125649126 is an apocalyptic number.

125649126 is an abundant number, since it is smaller than the sum of its proper divisors (150427818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125649126 is a wasteful number, since it uses less digits than its factorization.

125649126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98396 (or 98393 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 125649126 is about 11209.3320942864. The cubic root of 125649126 is about 500.8640074556.

The spelling of 125649126 in words is "one hundred twenty-five million, six hundred forty-nine thousand, one hundred twenty-six".