199455 has 8 divisors (see below), whose sum is σ = 319152. Its totient is φ = 106368.

The previous prime is 199453. The next prime is 199457. The reversal of 199455 is 554991.

It is an interprime number because it is at equal distance from previous prime (199453) and next prime (199457).

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

It is not a de Polignac number, because 199455 - 2¹ = 199453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199453) 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, 6634 + ... + 6663.

It is an arithmetic number, because the mean of its divisors is an integer number (39894).

2¹⁹⁹⁴⁵⁵ is an apocalyptic number.

199455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199455 is a deficient number, since it is larger than the sum of its proper divisors (119697).

199455 is a wasteful number, since it uses less digits than its factorization.

199455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13305.

The product of its digits is 8100, while the sum is 33.

The square root of 199455 is about 446.6038513045. The cubic root of 199455 is about 58.4271867851.

The spelling of 199455 in words is "one hundred ninety-nine thousand, four hundred fifty-five".