68151373 has 4 divisors (see below), whose sum is σ = 69993340. Its totient is φ = 66309408.

The previous prime is 68151371. The next prime is 68151379. The reversal of 68151373 is 37315186.

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 45995524 + 22155849 = 6782^2 + 4707^2 .

It is a cyclic number.

It is not a de Polignac number, because 68151373 - 2¹ = 68151371 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 (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 in 3 ways as a sum of consecutive naturals, for example, 920928 + ... + 921001.

It is an arithmetic number, because the mean of its divisors is an integer number (17498335).

Almost surely, 2^68151373 is an apocalyptic number.

It is an amenable number.

68151373 is a deficient number, since it is larger than the sum of its proper divisors (1841967).

68151373 is a wasteful number, since it uses less digits than its factorization.

68151373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841966.

The product of its digits is 15120, while the sum is 34.

The square root of 68151373 is about 8255.3844852920. The cubic root of 68151373 is about 408.4681545458.

The spelling of 68151373 in words is "sixty-eight million, one hundred fifty-one thousand, three hundred seventy-three".