196066291 has 4 divisors (see below), whose sum is σ = 196452000. Its totient is φ = 195680584.

The previous prime is 196066249. The next prime is 196066309. The reversal of 196066291 is 192660691.

196066291 = 349² + 350² + ... + 857².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196066291 - 2⁷ = 196066163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196066201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192091 + ... + 193108.

It is an arithmetic number, because the mean of its divisors is an integer number (49113000).

Almost surely, 2^196066291 is an apocalyptic number.

196066291 is a deficient number, since it is larger than the sum of its proper divisors (385709).

196066291 is an equidigital number, since it uses as much as digits as its factorization.

196066291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385708.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 196066291 is about 14002.3673355615. The cubic root of 196066291 is about 580.9440541065.

The spelling of 196066291 in words is "one hundred ninety-six million, sixty-six thousand, two hundred ninety-one".