204645453 has 16 divisors (see below), whose sum is σ = 278069760. Its totient is φ = 133835696.

The previous prime is 204645407. The next prime is 204645457. The reversal of 204645453 is 354546402.

It is a cyclic number.

It is not a de Polignac number, because 204645453 - 2⁸ = 204645197 is a prime.

It is a super-2 number, since 2×204645453² = 83759522867150418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204645457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113626 + ... + 115412.

It is an arithmetic number, because the mean of its divisors is an integer number (17379360).

Almost surely, 2^204645453 is an apocalyptic number.

It is an amenable number.

204645453 is a deficient number, since it is larger than the sum of its proper divisors (73424307).

204645453 is a wasteful number, since it uses less digits than its factorization.

204645453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 204645453 is about 14305.4343869734. The cubic root of 204645453 is about 589.2967326750.

The spelling of 204645453 in words is "two hundred four million, six hundred forty-five thousand, four hundred fifty-three".