196689231 has 12 divisors (see below), whose sum is σ = 284273080. Its totient is φ = 131049360.

The previous prime is 196689221. The next prime is 196689247. The reversal of 196689231 is 132986691.

It is a happy number.

It is not a de Polignac number, because 196689231 - 2⁹ = 196688719 is a prime.

It is a super-2 number, since 2×196689231² = 77373307182742722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196689211) 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, 12876 + ... + 23646.

Almost surely, 2^196689231 is an apocalyptic number.

196689231 is a deficient number, since it is larger than the sum of its proper divisors (87583849).

196689231 is a wasteful number, since it uses less digits than its factorization.

196689231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806 (or 12803 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 196689231 is about 14024.5937909089. The cubic root of 196689231 is about 581.5586603438.

The spelling of 196689231 in words is "one hundred ninety-six million, six hundred eighty-nine thousand, two hundred thirty-one".