125881606 has 8 divisors (see below), whose sum is σ = 189811584. Its totient is φ = 62611080.

The previous prime is 125881601. The next prime is 125881619. The reversal of 125881606 is 606188521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125881601) by changing a digit.

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, 164385 + ... + 165148.

It is an arithmetic number, because the mean of its divisors is an integer number (23726448).

Almost surely, 2^125881606 is an apocalyptic number.

125881606 is a deficient number, since it is larger than the sum of its proper divisors (63929978).

125881606 is a wasteful number, since it uses less digits than its factorization.

125881606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329726.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 125881606 is about 11219.6972329916. The cubic root of 125881606 is about 501.1727219626.

Adding to 125881606 its product of nonzero digits (23040), we get a triangular number (125904646 = T₁₅₈₆₈).

The spelling of 125881606 in words is "one hundred twenty-five million, eight hundred eighty-one thousand, six hundred six".