203890125 has 16 divisors (see below), whose sum is σ = 339273792. Its totient is φ = 108741200.

The previous prime is 203890109. The next prime is 203890139. The reversal of 203890125 is 521098302.

It is a happy number.

It is not a de Polignac number, because 203890125 - 2⁴ = 203890109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203890092 and 203890101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271479 + ... + 272228.

It is an arithmetic number, because the mean of its divisors is an integer number (21204612).

Almost surely, 2^203890125 is an apocalyptic number.

203890125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203890125 is a deficient number, since it is larger than the sum of its proper divisors (135383667).

203890125 is an equidigital number, since it uses as much as digits as its factorization.

203890125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543725 (or 543715 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 203890125 is about 14279.0099446705. The cubic root of 203890125 is about 588.5708250710.

The spelling of 203890125 in words is "two hundred three million, eight hundred ninety thousand, one hundred twenty-five".