125791646 has 32 divisors (see below), whose sum is σ = 203793408. Its totient is φ = 58088800.

The previous prime is 125791643. The next prime is 125791651. The reversal of 125791646 is 646197521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125791643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179096 + ... + 179796.

It is an arithmetic number, because the mean of its divisors is an integer number (6368544).

Almost surely, 2^125791646 is an apocalyptic number.

125791646 is a deficient number, since it is larger than the sum of its proper divisors (78001762).

125791646 is a wasteful number, since it uses less digits than its factorization.

125791646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its digits is 90720, while the sum is 41.

The square root of 125791646 is about 11215.6874956464. The cubic root of 125791646 is about 501.0533075284.

The spelling of 125791646 in words is "one hundred twenty-five million, seven hundred ninety-one thousand, six hundred forty-six".