157968173 has 8 divisors (see below), whose sum is σ = 174406176. Its totient is φ = 141876400.

The previous prime is 157968137. The next prime is 157968179. The reversal of 157968173 is 371869751.

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 157968173 - 2¹⁰ = 157967149 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 (157968179) 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, 85598 + ... + 87423.

It is an arithmetic number, because the mean of its divisors is an integer number (21800772).

Almost surely, 2^157968173 is an apocalyptic number.

It is an amenable number.

157968173 is a deficient number, since it is larger than the sum of its proper divisors (16438003).

157968173 is a wasteful number, since it uses less digits than its factorization.

157968173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173115.

The product of its digits is 317520, while the sum is 47.

The square root of 157968173 is about 12568.5390161307. The cubic root of 157968173 is about 540.5757154355.

The spelling of 157968173 in words is "one hundred fifty-seven million, nine hundred sixty-eight thousand, one hundred seventy-three".