199534 has 4 divisors (see below), whose sum is σ = 299304. Its totient is φ = 99766.

The previous prime is 199523. The next prime is 199559. The reversal of 199534 is 435991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435991 = 127 ⋅3433.

It is a junction number, because it is equal to n+sod(n) for n = 199496 and 199505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49882 + ... + 49885.

It is an arithmetic number, because the mean of its divisors is an integer number (74826).

2¹⁹⁹⁵³⁴ is an apocalyptic number.

199534 is a deficient number, since it is larger than the sum of its proper divisors (99770).

199534 is an equidigital number, since it uses as much as digits as its factorization.

199534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99769.

The product of its digits is 4860, while the sum is 31.

The square root of 199534 is about 446.6922878224. The cubic root of 199534 is about 58.4348997003.

The spelling of 199534 in words is "one hundred ninety-nine thousand, five hundred thirty-four".