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196249 = 4432

196249 has 3 divisors (see below), whose sum is σ = 196693. Its totient is φ = 195806.

The previous prime is 196247. The next prime is 196271. The reversal of 196249 is 942691.

196249 = T442 + T443.

It is a happy number.

The square root of 196249 is 443.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 196249 - 21 = 196247 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 5 and base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 196249.

It is not an unprimeable number, because it can be changed into a prime (196247) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 222 + ... + 664.

196249 is a Friedman number, since it can be written as (461-9-9)^2, using all its digits and the basic arithmetic operations.

2196249 is an apocalyptic number.

196249 is the 443-rd square number.

196249 is the 222-nd centered octagonal number.

It is an amenable number.

196249 is a deficient number, since it is larger than the sum of its proper divisors (444).

196249 is an frugal number, since it uses more digits than its factorization.

196249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 443 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The cubic root of 196249 is about 58.1124453557.

The spelling of 196249 in words is "one hundred ninety-six thousand, two hundred forty-nine".

Divisors: 1 443 196249