68434251 has 8 divisors (see below), whose sum is σ = 91438080. Its totient is φ = 45526632.

The previous prime is 68434243. The next prime is 68434279. The reversal of 68434251 is 15243486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68434251 - 2³ = 68434243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68434241) 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 7 ways as a sum of consecutive naturals, for example, 22375 + ... + 25248.

It is an arithmetic number, because the mean of its divisors is an integer number (11429760).

Almost surely, 2^68434251 is an apocalyptic number.

68434251 is a deficient number, since it is larger than the sum of its proper divisors (23003829).

68434251 is a wasteful number, since it uses less digits than its factorization.

68434251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48105.

The product of its digits is 23040, while the sum is 33.

The square root of 68434251 is about 8272.4996826836. The cubic root of 68434251 is about 409.0325215301.

The spelling of 68434251 in words is "sixty-eight million, four hundred thirty-four thousand, two hundred fifty-one".