125640822 has 8 divisors (see below), whose sum is σ = 251281656. Its totient is φ = 41880272.

The previous prime is 125640821. The next prime is 125640833. The reversal of 125640822 is 228046521.

It is a sphenic number, since it is the product of 3 distinct primes.

125640822 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 125640822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125640821) 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, 10470063 + ... + 10470074.

It is an arithmetic number, because the mean of its divisors is an integer number (31410207).

Almost surely, 2^125640822 is an apocalyptic number.

125640822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125640822 is a wasteful number, since it uses less digits than its factorization.

125640822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20940142.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 125640822 is about 11208.9616825110. The cubic root of 125640822 is about 500.8529733787.

The spelling of 125640822 in words is "one hundred twenty-five million, six hundred forty thousand, eight hundred twenty-two".