205246013 has 8 divisors (see below), whose sum is σ = 235747200. Its totient is φ = 175039920.

The previous prime is 205245983. The next prime is 205246031. The reversal of 205246013 is 310642502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205246013 - 2⁶ = 205245949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205246013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205246813) 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 7 ways as a sum of consecutive naturals, for example, 72278 + ... + 75063.

It is an arithmetic number, because the mean of its divisors is an integer number (29468400).

Almost surely, 2^205246013 is an apocalyptic number.

It is an amenable number.

205246013 is a deficient number, since it is larger than the sum of its proper divisors (30501187).

205246013 is a wasteful number, since it uses less digits than its factorization.

205246013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147547.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 205246013 is about 14326.4096339592. The cubic root of 205246013 is about 589.8726269135.

Adding to 205246013 its reverse (310642502), we get a palindrome (515888515).

The spelling of 205246013 in words is "two hundred five million, two hundred forty-six thousand, thirteen".