196985019 has 16 divisors (see below), whose sum is σ = 327456000. Its totient is φ = 102329760.

The previous prime is 196984969. The next prime is 196985057. The reversal of 196985019 is 910589691.

It is not a de Polignac number, because 196985019 - 2¹³ = 196976827 is a prime.

It is a super-2 number, since 2×196985019² = 77606195420860722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196985099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426144 + ... + 426605.

It is an arithmetic number, because the mean of its divisors is an integer number (20466000).

Almost surely, 2^196985019 is an apocalyptic number.

196985019 is a deficient number, since it is larger than the sum of its proper divisors (130470981).

196985019 is a wasteful number, since it uses less digits than its factorization.

196985019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852770.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 196985019 is about 14035.1351614439. The cubic root of 196985019 is about 581.8500369403.

The spelling of 196985019 in words is "one hundred ninety-six million, nine hundred eighty-five thousand, nineteen".