204013501 has 2 divisors, whose sum is σ = 204013502. Its totient is φ = 204013500.

The previous prime is 204013487. The next prime is 204013517. The reversal of 204013501 is 105310402.

It is an a-pointer prime, because the next prime (204013517) can be obtained adding 204013501 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202635225 + 1378276 = 14235^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 204013501 - 2⁹ = 204012989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204013531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102006750 + 102006751.

It is an arithmetic number, because the mean of its divisors is an integer number (102006751).

Almost surely, 2^204013501 is an apocalyptic number.

It is an amenable number.

204013501 is a deficient number, since it is larger than the sum of its proper divisors (1).

204013501 is an equidigital number, since it uses as much as digits as its factorization.

204013501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 204013501 is about 14283.3294788015. The cubic root of 204013501 is about 588.6895178755.

Adding to 204013501 its reverse (105310402), we get a palindrome (309323903).

The spelling of 204013501 in words is "two hundred four million, thirteen thousand, five hundred one".