68151379 has 2 divisors, whose sum is σ = 68151380. Its totient is φ = 68151378.

The previous prime is 68151371. The next prime is 68151437. The reversal of 68151379 is 97315186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68151379 - 2³ = 68151371 is a prime.

It is a super-2 number, since 2×68151379² = 9289220919203282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68151371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075689 + 34075690.

It is an arithmetic number, because the mean of its divisors is an integer number (34075690).

Almost surely, 2^68151379 is an apocalyptic number.

68151379 is a deficient number, since it is larger than the sum of its proper divisors (1).

68151379 is an equidigital number, since it uses as much as digits as its factorization.

68151379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 68151379 is about 8255.3848486912. The cubic root of 68151379 is about 408.4681665329.

The spelling of 68151379 in words is "sixty-eight million, one hundred fifty-one thousand, three hundred seventy-nine".