68564541 has 8 divisors (see below), whose sum is σ = 95394240. Its totient is φ = 43722272.

The previous prime is 68564533. The next prime is 68564609. The reversal of 68564541 is 14546586.

It is a happy number.

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 68564541 - 2³ = 68564533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68564541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68564501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496776 + ... + 496913.

It is an arithmetic number, because the mean of its divisors is an integer number (11924280).

Almost surely, 2^68564541 is an apocalyptic number.

It is an amenable number.

68564541 is a deficient number, since it is larger than the sum of its proper divisors (26829699).

68564541 is a wasteful number, since it uses less digits than its factorization.

68564541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993715.

The product of its digits is 115200, while the sum is 39.

The square root of 68564541 is about 8280.3708250295. The cubic root of 68564541 is about 409.2919387141.

The spelling of 68564541 in words is "sixty-eight million, five hundred sixty-four thousand, five hundred forty-one".