196091956 has 6 divisors (see below), whose sum is σ = 343160930. Its totient is φ = 98045976.

The previous prime is 196091953. The next prime is 196091963. The reversal of 196091956 is 659190691.

It can be written as a sum of positive squares in only one way, i.e., 182520100 + 13571856 = 13510^2 + 3684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196091953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24511491 + ... + 24511498.

Almost surely, 2^196091956 is an apocalyptic number.

It is an amenable number.

196091956 is a deficient number, since it is larger than the sum of its proper divisors (147068974).

196091956 is a wasteful number, since it uses less digits than its factorization.

196091956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49022993 (or 49022991 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 196091956 is about 14003.2837577477. The cubic root of 196091956 is about 580.9694014495.

The spelling of 196091956 in words is "one hundred ninety-six million, ninety-one thousand, nine hundred fifty-six".