68434133 has 4 divisors (see below), whose sum is σ = 68788908. Its totient is φ = 68079360.

The previous prime is 68434117. The next prime is 68434139. The reversal of 68434133 is 33143486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30217009 + 38217124 = 5497^2 + 6182^2 .

It is a cyclic number.

It is not a de Polignac number, because 68434133 - 2⁴ = 68434117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68434133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177098 + ... + 177483.

It is an arithmetic number, because the mean of its divisors is an integer number (17197227).

Almost surely, 2^68434133 is an apocalyptic number.

It is an amenable number.

68434133 is a deficient number, since it is larger than the sum of its proper divisors (354775).

68434133 is a wasteful number, since it uses less digits than its factorization.

68434133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354774.

The product of its digits is 20736, while the sum is 32.

The square root of 68434133 is about 8272.4925506162. The cubic root of 68434133 is about 409.0322864341.

The spelling of 68434133 in words is "sixty-eight million, four hundred thirty-four thousand, one hundred thirty-three".