68541213 has 8 divisors (see below), whose sum is σ = 98418208. Its totient is φ = 42179184.

The previous prime is 68541211. The next prime is 68541223. The reversal of 68541213 is 31214586.

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

It is not a de Polignac number, because 68541213 - 2¹ = 68541211 is a prime.

It is a super-2 number, since 2×68541213² = 9395795759022738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68541211) 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, 878695 + ... + 878772.

It is an arithmetic number, because the mean of its divisors is an integer number (12302276).

Almost surely, 2^68541213 is an apocalyptic number.

It is an amenable number.

68541213 is a deficient number, since it is larger than the sum of its proper divisors (29876995).

68541213 is a wasteful number, since it uses less digits than its factorization.

68541213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757483.

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

The square root of 68541213 is about 8278.9620726272. The cubic root of 68541213 is about 409.2455150805.

Adding to 68541213 its reverse (31214586), we get a palindrome (99755799).

The spelling of 68541213 in words is "sixty-eight million, five hundred forty-one thousand, two hundred thirteen".