196312899 has 4 divisors (see below), whose sum is σ = 261750536. Its totient is φ = 130875264.

The previous prime is 196312891. The next prime is 196312933. The reversal of 196312899 is 998213691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998213691 = 3 ⋅332737897.

It is not a de Polignac number, because 196312899 - 2³ = 196312891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196312891) 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, 32718814 + ... + 32718819.

It is an arithmetic number, because the mean of its divisors is an integer number (65437634).

Almost surely, 2^196312899 is an apocalyptic number.

196312899 is a deficient number, since it is larger than the sum of its proper divisors (65437637).

196312899 is an equidigital number, since it uses as much as digits as its factorization.

196312899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65437636.

The product of its digits is 209952, while the sum is 48.

The square root of 196312899 is about 14011.1705078484. The cubic root of 196312899 is about 581.1875184081.

The spelling of 196312899 in words is "one hundred ninety-six million, three hundred twelve thousand, eight hundred ninety-nine".