157643173 has 8 divisors (see below), whose sum is σ = 165756096. Its totient is φ = 149635200.

The previous prime is 157643137. The next prime is 157643177. The reversal of 157643173 is 371346751.

157643173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 157643173 - 2¹⁷ = 157512101 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 (157643177) 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, 23148 + ... + 29173.

It is an arithmetic number, because the mean of its divisors is an integer number (20719512).

Almost surely, 2^157643173 is an apocalyptic number.

It is an amenable number.

157643173 is a deficient number, since it is larger than the sum of its proper divisors (8112923).

157643173 is a wasteful number, since it uses less digits than its factorization.

157643173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52475.

The product of its digits is 52920, while the sum is 37.

The square root of 157643173 is about 12555.6032511385. The cubic root of 157643173 is about 540.2047383226.

The spelling of 157643173 in words is "one hundred fifty-seven million, six hundred forty-three thousand, one hundred seventy-three".