125806738 has 8 divisors (see below), whose sum is σ = 188758332. Its totient is φ = 62887296.

The previous prime is 125806693. The next prime is 125806739. The reversal of 125806738 is 837608521.

It can be written as a sum of positive squares in 2 ways, for example, as 115928289 + 9878449 = 10767^2 + 3143^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 125806738.

It is not an unprimeable number, because it can be changed into a prime (125806739) 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, 8806 + ... + 18142.

Almost surely, 2^125806738 is an apocalyptic number.

125806738 is a deficient number, since it is larger than the sum of its proper divisors (62951594).

125806738 is an equidigital number, since it uses as much as digits as its factorization.

125806738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16076.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 125806738 is about 11216.3602830865. The cubic root of 125806738 is about 501.0733448794.

The spelling of 125806738 in words is "one hundred twenty-five million, eight hundred six thousand, seven hundred thirty-eight".