401205245 has 16 divisors (see below), whose sum is σ = 565097088. Its totient is φ = 267675840.

The previous prime is 401205223. The next prime is 401205271. The reversal of 401205245 is 542502104.

It is a happy number.

It is not a de Polignac number, because 401205245 - 2⁸ = 401204989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 401205245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153611 + ... + 156200.

It is an arithmetic number, because the mean of its divisors is an integer number (35318568).

Almost surely, 2^401205245 is an apocalyptic number.

It is an amenable number.

401205245 is a deficient number, since it is larger than the sum of its proper divisors (163891843).

401205245 is a wasteful number, since it uses less digits than its factorization.

401205245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309860.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 401205245 is about 20030.1084620129. The cubic root of 401205245 is about 737.5455844657.

Adding to 401205245 its reverse (542502104), we get a palindrome (943707349).

The spelling of 401205245 in words is "four hundred one million, two hundred five thousand, two hundred forty-five".