204126530 has 16 divisors (see below), whose sum is σ = 369684864. Its totient is φ = 81149040.

The previous prime is 204126529. The next prime is 204126539. The reversal of 204126530 is 35621402.

It is a junction number, because it is equal to n+sod(n) for n = 204126496 and 204126505.

It is not an unprimeable number, because it can be changed into a prime (204126539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60986 + ... + 64245.

It is an arithmetic number, because the mean of its divisors is an integer number (23105304).

Almost surely, 2^204126530 is an apocalyptic number.

204126530 is a deficient number, since it is larger than the sum of its proper divisors (165558334).

204126530 is a wasteful number, since it uses less digits than its factorization.

204126530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125401.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 204126530 is about 14287.2856064404. The cubic root of 204126530 is about 588.7982144451.

Adding to 204126530 its reverse (35621402), we get a palindrome (239747932).

The spelling of 204126530 in words is "two hundred four million, one hundred twenty-six thousand, five hundred thirty".