204013291 has 2 divisors, whose sum is σ = 204013292. Its totient is φ = 204013290.

The previous prime is 204013283. The next prime is 204013297. The reversal of 204013291 is 192310402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204013291 - 2³ = 204013283 is a prime.

It is not a weakly prime, because it can be changed into another prime (204013297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102006645 + 102006646.

It is an arithmetic number, because the mean of its divisors is an integer number (102006646).

Almost surely, 2^204013291 is an apocalyptic number.

204013291 is a deficient number, since it is larger than the sum of its proper divisors (1).

204013291 is an equidigital number, since it uses as much as digits as its factorization.

204013291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 204013291 is about 14283.3221275724. The cubic root of 204013291 is about 588.6893158875.

Adding to 204013291 its reverse (192310402), we get a palindrome (396323693).

It can be divided in two parts, 204013 and 291, that added together give a square (204304 = 452²).

The spelling of 204013291 in words is "two hundred four million, thirteen thousand, two hundred ninety-one".