205353401 has 4 divisors (see below), whose sum is σ = 224021904. Its totient is φ = 186684900.

The previous prime is 205353397. The next prime is 205353403. The reversal of 205353401 is 104353502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205353401 - 2² = 205353397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205353403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9334235 + ... + 9334256.

It is an arithmetic number, because the mean of its divisors is an integer number (56005476).

Almost surely, 2^205353401 is an apocalyptic number.

It is an amenable number.

205353401 is a deficient number, since it is larger than the sum of its proper divisors (18668503).

205353401 is a wasteful number, since it uses less digits than its factorization.

205353401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18668502.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 205353401 is about 14330.1570472902. The cubic root of 205353401 is about 589.9754859105.

The spelling of 205353401 in words is "two hundred five million, three hundred fifty-three thousand, four hundred one".