208245013 has 8 divisors (see below), whose sum is σ = 217499328. Its totient is φ = 199007424.

The previous prime is 208244989. The next prime is 208245017. The reversal of 208245013 is 310542802.

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 208245013 - 2⁹ = 208244501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208245017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25981 + ... + 33037.

It is an arithmetic number, because the mean of its divisors is an integer number (27187416).

Almost surely, 2^208245013 is an apocalyptic number.

208245013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

208245013 is a deficient number, since it is larger than the sum of its proper divisors (9254315).

208245013 is a wasteful number, since it uses less digits than its factorization.

208245013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8363.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 208245013 is about 14430.6968993185. The cubic root of 208245013 is about 592.7317666402.

Adding to 208245013 its reverse (310542802), we get a palindrome (518787815).

The spelling of 208245013 in words is "two hundred eight million, two hundred forty-five thousand, thirteen".