201604099 has 2 divisors, whose sum is σ = 201604100. Its totient is φ = 201604098.

The previous prime is 201604061. The next prime is 201604127. The reversal of 201604099 is 990406102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201604099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201604099.

It is not a weakly prime, because it can be changed into another prime (201604019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100802049 + 100802050.

It is an arithmetic number, because the mean of its divisors is an integer number (100802050).

Almost surely, 2^201604099 is an apocalyptic number.

201604099 is a deficient number, since it is larger than the sum of its proper divisors (1).

201604099 is an equidigital number, since it uses as much as digits as its factorization.

201604099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 201604099 is about 14198.7358240091. The cubic root of 201604099 is about 586.3628575407.

The spelling of 201604099 in words is "two hundred one million, six hundred four thousand, ninety-nine".