196278001 has 4 divisors (see below), whose sum is σ = 196575604. Its totient is φ = 195980400.

The previous prime is 196277993. The next prime is 196278013. The reversal of 196278001 is 100872691.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 150038001 + 46240000 = 12249^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 196278001 - 2³ = 196277993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196278031) 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, 147810 + ... + 149131.

It is an arithmetic number, because the mean of its divisors is an integer number (49143901).

Almost surely, 2^196278001 is an apocalyptic number.

It is an amenable number.

196278001 is a deficient number, since it is larger than the sum of its proper divisors (297603).

196278001 is an equidigital number, since it uses as much as digits as its factorization.

196278001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297602.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 196278001 is about 14009.9250890217. The cubic root of 196278001 is about 581.1530776690.

The spelling of 196278001 in words is "one hundred ninety-six million, two hundred seventy-eight thousand, one".