125783406 has 24 divisors (see below), whose sum is σ = 311463984. Its totient is φ = 35938080.

The previous prime is 125783393. The next prime is 125783417. The reversal of 125783406 is 604387521.

It is a super-3 number, since 3×125783406³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499015 + ... + 499266.

It is an arithmetic number, because the mean of its divisors is an integer number (12977666).

Almost surely, 2^125783406 is an apocalyptic number.

125783406 is an abundant number, since it is smaller than the sum of its proper divisors (185680578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125783406 is a wasteful number, since it uses less digits than its factorization.

125783406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998296 (or 998293 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 125783406 is about 11215.3201470132. The cubic root of 125783406 is about 501.0423667663.

The spelling of 125783406 in words is "one hundred twenty-five million, seven hundred eighty-three thousand, four hundred six".