204148215 has 16 divisors (see below), whose sum is σ = 362930400. Its totient is φ = 108878976.

The previous prime is 204148187. The next prime is 204148229. The reversal of 204148215 is 512841402.

It is not a de Polignac number, because 204148215 - 2⁵ = 204148183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755970 + ... + 756239.

It is an arithmetic number, because the mean of its divisors is an integer number (22683150).

Almost surely, 2^204148215 is an apocalyptic number.

204148215 is a deficient number, since it is larger than the sum of its proper divisors (158782185).

204148215 is a wasteful number, since it uses less digits than its factorization.

204148215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512223 (or 1512217 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 204148215 is about 14288.0444778143. The cubic root of 204148215 is about 588.8190636657.

Adding to 204148215 its reverse (512841402), we get a palindrome (716989617).

The spelling of 204148215 in words is "two hundred four million, one hundred forty-eight thousand, two hundred fifteen".