68163213 has 16 divisors (see below), whose sum is σ = 95518016. Its totient is φ = 43182720.

The previous prime is 68163181. The next prime is 68163223. The reversal of 68163213 is 31236186.

It is not a de Polignac number, because 68163213 - 2⁵ = 68163181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68163223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368 + ... + 11913.

It is an arithmetic number, because the mean of its divisors is an integer number (5969876).

Almost surely, 2^68163213 is an apocalyptic number.

It is an amenable number.

68163213 is a deficient number, since it is larger than the sum of its proper divisors (27354803).

68163213 is a wasteful number, since it uses less digits than its factorization.

68163213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14364.

The product of its digits is 5184, while the sum is 30.

The square root of 68163213 is about 8256.1015618753. The cubic root of 68163213 is about 408.4918076907.

Adding to 68163213 its reverse (31236186), we get a palindrome (99399399).

The spelling of 68163213 in words is "sixty-eight million, one hundred sixty-three thousand, two hundred thirteen".