125803512 has 24 divisors (see below), whose sum is σ = 340718040. Its totient is φ = 41934480.

The previous prime is 125803511. The next prime is 125803571. The reversal of 125803512 is 215308521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125803511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 873564 + ... + 873707.

It is an arithmetic number, because the mean of its divisors is an integer number (14196585).

Almost surely, 2^125803512 is an apocalyptic number.

125803512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125803512 is an abundant number, since it is smaller than the sum of its proper divisors (214914528).

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

125803512 is a wasteful number, since it uses less digits than its factorization.

125803512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747283 (or 1747276 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 125803512 is about 11216.2164743732. The cubic root of 125803512 is about 501.0690619175.

The spelling of 125803512 in words is "one hundred twenty-five million, eight hundred three thousand, five hundred twelve".