204645134 has 8 divisors (see below), whose sum is σ = 311172960. Its totient is φ = 100920816.

The previous prime is 204645121. The next prime is 204645139. The reversal of 204645134 is 431546402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 204645097 and 204645106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204645139) 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, 700694 + ... + 700985.

It is an arithmetic number, because the mean of its divisors is an integer number (38896620).

Almost surely, 2^204645134 is an apocalyptic number.

204645134 is a deficient number, since it is larger than the sum of its proper divisors (106527826).

204645134 is a wasteful number, since it uses less digits than its factorization.

204645134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401754.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 204645134 is about 14305.4232373600. The cubic root of 204645134 is about 589.2964264775.

The spelling of 204645134 in words is "two hundred four million, six hundred forty-five thousand, one hundred thirty-four".