125843636 has 12 divisors (see below), whose sum is σ = 220752420. Its totient is φ = 62771520.

The previous prime is 125843617. The next prime is 125843647. The reversal of 125843636 is 636348521.

It can be written as a sum of positive squares in 2 ways, for example, as 17808400 + 108035236 = 4220^2 + 10394^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 125843636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35681 + ... + 39048.

It is an arithmetic number, because the mean of its divisors is an integer number (18396035).

Almost surely, 2^125843636 is an apocalyptic number.

It is an amenable number.

125843636 is a deficient number, since it is larger than the sum of its proper divisors (94908784).

125843636 is a wasteful number, since it uses less digits than its factorization.

125843636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75154 (or 75152 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 125843636 is about 11218.0049919761. The cubic root of 125843636 is about 501.1223268798.

The spelling of 125843636 in words is "one hundred twenty-five million, eight hundred forty-three thousand, six hundred thirty-six".