204240125 has 32 divisors (see below), whose sum is σ = 271724544. Its totient is φ = 152736000.

The previous prime is 204240109. The next prime is 204240131. The reversal of 204240125 is 521042402.

It is a happy number.

It is not a de Polignac number, because 204240125 - 2⁴ = 204240109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204240097 and 204240106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473660 + ... + 474090.

It is an arithmetic number, because the mean of its divisors is an integer number (8491392).

Almost surely, 2^204240125 is an apocalyptic number.

204240125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204240125 is a deficient number, since it is larger than the sum of its proper divisors (67484419).

204240125 is a wasteful number, since it uses less digits than its factorization.

204240125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204240125 is about 14291.2604412627. The cubic root of 204240125 is about 588.9074149005.

Adding to 204240125 its reverse (521042402), we get a palindrome (725282527).

The spelling of 204240125 in words is "two hundred four million, two hundred forty thousand, one hundred twenty-five".