204130542 has 32 divisors (see below), whose sum is σ = 509001984. Its totient is φ = 53020800.

The previous prime is 204130523. The next prime is 204130573. The reversal of 204130542 is 245031402.

204130542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 220459 + ... + 221382.

It is an arithmetic number, because the mean of its divisors is an integer number (15906312).

Almost surely, 2^204130542 is an apocalyptic number.

204130542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204130542 is an abundant number, since it is smaller than the sum of its proper divisors (304871442).

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

204130542 is a wasteful number, since it uses less digits than its factorization.

204130542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441864.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 204130542 is about 14287.4260103071. The cubic root of 204130542 is about 588.8020719267.

Adding to 204130542 its reverse (245031402), we get a palindrome (449161944).

The spelling of 204130542 in words is "two hundred four million, one hundred thirty thousand, five hundred forty-two".