68157073 has 8 divisors (see below), whose sum is σ = 71666496. Its totient is φ = 64693200.

The previous prime is 68157059. The next prime is 68157083. The reversal of 68157073 is 37075186.

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

It is a cyclic number.

It is not a de Polignac number, because 68157073 - 2²¹ = 66059921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68157043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8298 + ... + 14323.

It is an arithmetic number, because the mean of its divisors is an integer number (8958312).

Almost surely, 2^68157073 is an apocalyptic number.

It is an amenable number.

68157073 is a deficient number, since it is larger than the sum of its proper divisors (3509423).

68157073 is a wasteful number, since it uses less digits than its factorization.

68157073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 68157073 is about 8255.7297073003. The cubic root of 68157073 is about 408.4795419592.

The spelling of 68157073 in words is "sixty-eight million, one hundred fifty-seven thousand, seventy-three".