204659134 has 4 divisors (see below), whose sum is σ = 306988704. Its totient is φ = 102329566.

The previous prime is 204659093. The next prime is 204659137. The reversal of 204659134 is 431956402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×204659134² = 83770722259259912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204659134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204659137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51164782 + ... + 51164785.

It is an arithmetic number, because the mean of its divisors is an integer number (76747176).

Almost surely, 2^204659134 is an apocalyptic number.

204659134 is a deficient number, since it is larger than the sum of its proper divisors (102329570).

204659134 is a wasteful number, since it uses less digits than its factorization.

204659134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102329569.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 204659134 is about 14305.9125539058. The cubic root of 204659134 is about 589.3098643112.

The spelling of 204659134 in words is "two hundred four million, six hundred fifty-nine thousand, one hundred thirty-four".