203425144 has 16 divisors (see below), whose sum is σ = 410762520. Its totient is φ = 93888480.

The previous prime is 203425129. The next prime is 203425147. The reversal of 203425144 is 441524302.

It is a happy number.

It is a super-2 number, since 2×203425144² = 82763578422841472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203425147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977902 + ... + 978109.

Almost surely, 2^203425144 is an apocalyptic number.

It is an amenable number.

203425144 is an abundant number, since it is smaller than the sum of its proper divisors (207337376).

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

203425144 is a wasteful number, since it uses less digits than its factorization.

203425144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956030 (or 1956026 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 203425144 is about 14262.7186749231. The cubic root of 203425144 is about 588.1230633870.

Adding to 203425144 its reverse (441524302), we get a palindrome (644949446).

The spelling of 203425144 in words is "two hundred three million, four hundred twenty-five thousand, one hundred forty-four".