68115641 has 4 divisors (see below), whose sum is σ = 74307984. Its totient is φ = 61923300.

The previous prime is 68115623. The next prime is 68115659. The reversal of 68115641 is 14651186.

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 an interprime number because it is at equal distance from previous prime (68115623) and next prime (68115659).

It is a cyclic number.

It is not a de Polignac number, because 68115641 - 2¹⁰ = 68114617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68115598 and 68115607.

It is not an unprimeable number, because it can be changed into a prime (68115661) 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, 3096155 + ... + 3096176.

It is an arithmetic number, because the mean of its divisors is an integer number (18576996).

Almost surely, 2^68115641 is an apocalyptic number.

It is an amenable number.

68115641 is a deficient number, since it is larger than the sum of its proper divisors (6192343).

68115641 is a wasteful number, since it uses less digits than its factorization.

68115641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192342.

The product of its digits is 5760, while the sum is 32.

The square root of 68115641 is about 8253.2200382639. The cubic root of 68115641 is about 408.3967549784.

The spelling of 68115641 in words is "sixty-eight million, one hundred fifteen thousand, six hundred forty-one".