125644742 has 8 divisors (see below), whose sum is σ = 188538600. Its totient is φ = 62798544.

The previous prime is 125644723. The next prime is 125644769. The reversal of 125644742 is 247446521.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367 + ... + 16442.

It is an arithmetic number, because the mean of its divisors is an integer number (23567325).

Almost surely, 2^125644742 is an apocalyptic number.

125644742 is a deficient number, since it is larger than the sum of its proper divisors (62893858).

125644742 is a wasteful number, since it uses less digits than its factorization.

125644742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23830.

The product of its digits is 53760, while the sum is 35.

The square root of 125644742 is about 11209.1365412328. The cubic root of 125644742 is about 500.8581822039.

The spelling of 125644742 in words is "one hundred twenty-five million, six hundred forty-four thousand, seven hundred forty-two".