204197136 has 160 divisors (see below), whose sum is σ = 629959680. Its totient is φ = 56179200.

The previous prime is 204197113. The next prime is 204197137. The reversal of 204197136 is 631791402.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 204197097 and 204197106.

It is not an unprimeable number, because it can be changed into a prime (204197137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487135 + ... + 487553.

It is an arithmetic number, because the mean of its divisors is an integer number (3937248).

Almost surely, 2^204197136 is an apocalyptic number.

204197136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204197136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314979840).

204197136 is an abundant number, since it is smaller than the sum of its proper divisors (425762544).

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

204197136 is a wasteful number, since it uses less digits than its factorization.

204197136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 204197136 is about 14289.7563310226. The cubic root of 204197136 is about 588.8660937394.

The spelling of 204197136 in words is "two hundred four million, one hundred ninety-seven thousand, one hundred thirty-six".