204198613 has 8 divisors (see below), whose sum is σ = 205623680. Its totient is φ = 202778640.

The previous prime is 204198563. The next prime is 204198619. The reversal of 204198613 is 316891402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204198613 is a prime.

It is a super-2 number, since 2×204198613² = 83394147102247538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204198619) 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, 110608 + ... + 112438.

It is an arithmetic number, because the mean of its divisors is an integer number (25702960).

Almost surely, 2^204198613 is an apocalyptic number.

It is an amenable number.

204198613 is a deficient number, since it is larger than the sum of its proper divisors (1425067).

204198613 is a wasteful number, since it uses less digits than its factorization.

204198613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 204198613 is about 14289.8080113065. The cubic root of 204198613 is about 588.8675135326.

The spelling of 204198613 in words is "two hundred four million, one hundred ninety-eight thousand, six hundred thirteen".