199157 has 8 divisors (see below), whose sum is σ = 237696. Its totient is φ = 163152.

The previous prime is 199153. The next prime is 199181. The reversal of 199157 is 751991.

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 199157 - 2² = 199153 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 (199151) 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, 458 + ... + 779.

It is an arithmetic number, because the mean of its divisors is an integer number (29712).

2¹⁹⁹¹⁵⁷ is an apocalyptic number.

It is an amenable number.

199157 is a deficient number, since it is larger than the sum of its proper divisors (38539).

199157 is a wasteful number, since it uses less digits than its factorization.

199157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its digits is 2835, while the sum is 32.

The square root of 199157 is about 446.2700975867. The cubic root of 199157 is about 58.3980741530.

It can be divided in two parts, 1991 and 57, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 199157 in words is "one hundred ninety-nine thousand, one hundred fifty-seven".