199725 has 12 divisors (see below), whose sum is σ = 330336. Its totient is φ = 106480.

The previous prime is 199721. The next prime is 199729. The reversal of 199725 is 527991.

It is an interprime number because it is at equal distance from previous prime (199721) and next prime (199729).

It is not a de Polignac number, because 199725 - 2² = 199721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1257 + ... + 1406.

It is an arithmetic number, because the mean of its divisors is an integer number (27528).

2¹⁹⁹⁷²⁵ is an apocalyptic number.

199725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199725 is a deficient number, since it is larger than the sum of its proper divisors (130611).

199725 is a wasteful number, since it uses less digits than its factorization.

199725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676 (or 2671 counting only the distinct ones).

The product of its digits is 5670, while the sum is 33.

The square root of 199725 is about 446.9060303912. The cubic root of 199725 is about 58.4535389740.

The spelling of 199725 in words is "one hundred ninety-nine thousand, seven hundred twenty-five".