196539 has 16 divisors (see below), whose sum is σ = 307200. Its totient is φ = 111720.

The previous prime is 196523. The next prime is 196541. The reversal of 196539 is 935691.

It is not a de Polignac number, because 196539 - 2⁴ = 196523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934 + ... + 1124.

It is an arithmetic number, because the mean of its divisors is an integer number (19200).

2¹⁹⁶⁵³⁹ is an apocalyptic number.

196539 is a deficient number, since it is larger than the sum of its proper divisors (110661).

196539 is an equidigital number, since it uses as much as digits as its factorization.

196539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 201 counting only the distinct ones).

The product of its digits is 7290, while the sum is 33.

The square root of 196539 is about 443.3271929399. The cubic root of 196539 is about 58.1410558027.

The spelling of 196539 in words is "one hundred ninety-six thousand, five hundred thirty-nine".