68142833 has 4 divisors (see below), whose sum is σ = 74337648. Its totient is φ = 61948020.

The previous prime is 68142829. The next prime is 68142857. The reversal of 68142833 is 33824186.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 68142833 - 2² = 68142829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68142793 and 68142802.

It is not an unprimeable number, because it can be changed into a prime (68142803) 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, 3097391 + ... + 3097412.

It is an arithmetic number, because the mean of its divisors is an integer number (18584412).

Almost surely, 2^68142833 is an apocalyptic number.

It is an amenable number.

68142833 is a deficient number, since it is larger than the sum of its proper divisors (6194815).

68142833 is a wasteful number, since it uses less digits than its factorization.

68142833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194814.

The product of its digits is 27648, while the sum is 35.

The square root of 68142833 is about 8254.8672309129. The cubic root of 68142833 is about 408.4510922153.

The spelling of 68142833 in words is "sixty-eight million, one hundred forty-two thousand, eight hundred thirty-three".