68415213 has 4 divisors (see below), whose sum is σ = 91220288. Its totient is φ = 45610140.

The previous prime is 68415203. The next prime is 68415247. The reversal of 68415213 is 31251486.

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 not a de Polignac number, because 68415213 - 2⁹ = 68414701 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 (68415203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11402533 + ... + 11402538.

It is an arithmetic number, because the mean of its divisors is an integer number (22805072).

Almost surely, 2^68415213 is an apocalyptic number.

It is an amenable number.

68415213 is a deficient number, since it is larger than the sum of its proper divisors (22805075).

68415213 is a wasteful number, since it uses less digits than its factorization.

68415213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22805074.

The product of its digits is 5760, while the sum is 30.

The square root of 68415213 is about 8271.3489226365. The cubic root of 68415213 is about 408.9945878772.

Adding to 68415213 its reverse (31251486), we get a palindrome (99666699).

The spelling of 68415213 in words is "sixty-eight million, four hundred fifteen thousand, two hundred thirteen".