157197 has 8 divisors (see below), whose sum is σ = 213280. Its totient is φ = 102960.

The previous prime is 157189. The next prime is 157207. The reversal of 157197 is 791751.

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

It is not a de Polignac number, because 157197 - 2³ = 157189 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 (157127) 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, 247 + ... + 612.

It is an arithmetic number, because the mean of its divisors is an integer number (26660).

2¹⁵⁷¹⁹⁷ is an apocalyptic number.

It is an amenable number.

157197 is a deficient number, since it is larger than the sum of its proper divisors (56083).

157197 is an equidigital number, since it uses as much as digits as its factorization.

157197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923.

The product of its digits is 2205, while the sum is 30.

The square root of 157197 is about 396.4807687644. The cubic root of 157197 is about 53.9694614708.

The spelling of 157197 in words is "one hundred fifty-seven thousand, one hundred ninety-seven".