196731 has 6 divisors (see below), whose sum is σ = 284180. Its totient is φ = 131148.

The previous prime is 196727. The next prime is 196739. The reversal of 196731 is 137691.

It is not a de Polignac number, because 196731 - 2² = 196727 is a prime.

It is a super-2 number, since 2×196731² = 77406172722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196695 and 196704.

It is not an unprimeable number, because it can be changed into a prime (196739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10921 + ... + 10938.

2¹⁹⁶⁷³¹ is an apocalyptic number.

196731 is a deficient number, since it is larger than the sum of its proper divisors (87449).

196731 is a wasteful number, since it uses less digits than its factorization.

196731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21865 (or 21862 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 196731 is about 443.5436844325. The cubic root of 196731 is about 58.1599824103.

The spelling of 196731 in words is "one hundred ninety-six thousand, seven hundred thirty-one".