68663141 has 4 divisors (see below), whose sum is σ = 69688032. Its totient is φ = 67638252.

The previous prime is 68663137. The next prime is 68663191. The reversal of 68663141 is 14136686.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14136686 = 2 ⋅7068343.

It is a cyclic number.

It is not a de Polignac number, because 68663141 - 2² = 68663137 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 (68663191) 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, 512345 + ... + 512478.

It is an arithmetic number, because the mean of its divisors is an integer number (17422008).

Almost surely, 2^68663141 is an apocalyptic number.

It is an amenable number.

68663141 is a deficient number, since it is larger than the sum of its proper divisors (1024891).

68663141 is a wasteful number, since it uses less digits than its factorization.

68663141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024890.

The product of its digits is 20736, while the sum is 35.

The square root of 68663141 is about 8286.3225257046. The cubic root of 68663141 is about 409.4880403488.

The spelling of 68663141 in words is "sixty-eight million, six hundred sixty-three thousand, one hundred forty-one".