401205361 has 4 divisors (see below), whose sum is σ = 401517424. Its totient is φ = 400893300.

The previous prime is 401205341. The next prime is 401205367. The reversal of 401205361 is 163502104.

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 401205361 - 2¹³ = 401197169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401205367) 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 in 3 ways as a sum of consecutive naturals, for example, 154095 + ... + 156676.

It is an arithmetic number, because the mean of its divisors is an integer number (100379356).

Almost surely, 2^401205361 is an apocalyptic number.

It is an amenable number.

401205361 is a deficient number, since it is larger than the sum of its proper divisors (312063).

401205361 is a wasteful number, since it uses less digits than its factorization.

401205361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312062.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 401205361 is about 20030.1113576535. Note that the first 3 decimals coincide. The cubic root of 401205361 is about 737.5456555476.

Adding to 401205361 its reverse (163502104), we get a palindrome (564707465).

The spelling of 401205361 in words is "four hundred one million, two hundred five thousand, three hundred sixty-one".