125803142440 has 24 divisors (see below), whose sum is σ = 283062117870. Its totient is φ = 50320359680.

The previous prime is 125803142419. The next prime is 125803142483. The reversal of 125803142440 is 44241308521.

It can be written as a sum of positive squares in 3 ways, for example, as 43366396516 + 82436745924 = 208246^2 + 287118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125803142396 and 125803142405.

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 5 ways as a sum of consecutive naturals, for example, 2215200 + ... + 2271280.

Almost surely, 2^125803142440 is an apocalyptic number.

125803142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125803142440 is an abundant number, since it is smaller than the sum of its proper divisors (157258975430).

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

125803142440 is an frugal number, since it uses more digits than its factorization.

125803142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112173 (or 56088 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 125803142440 in words is "one hundred twenty-five billion, eight hundred three million, one hundred forty-two thousand, four hundred forty".