125843280 has 40 divisors (see below), whose sum is σ = 390114912. Its totient is φ = 33558144.

The previous prime is 125843279. The next prime is 125843293. The reversal of 125843280 is 82348521.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×125843280² = 31673062242316800, which contains 22 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261934 + ... + 262413.

Almost surely, 2^125843280 is an apocalyptic number.

125843280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125843280 is an abundant number, since it is smaller than the sum of its proper divisors (264271632).

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

125843280 is a wasteful number, since it uses less digits than its factorization.

125843280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524363 (or 524357 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 125843280 is about 11217.9891246159. The cubic root of 125843280 is about 501.1218543365.

The spelling of 125843280 in words is "one hundred twenty-five million, eight hundred forty-three thousand, two hundred eighty".