196997149 has 8 divisors (see below), whose sum is σ = 208103840. Its totient is φ = 185964336.

The previous prime is 196997113. The next prime is 196997161. The reversal of 196997149 is 941799691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196997149 - 2⁹ = 196996637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196997149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196997179) 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 7 ways as a sum of consecutive naturals, for example, 12942 + ... + 23695.

It is an arithmetic number, because the mean of its divisors is an integer number (26012980).

Almost surely, 2^196997149 is an apocalyptic number.

196997149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

196997149 is a deficient number, since it is larger than the sum of its proper divisors (11106691).

196997149 is a wasteful number, since it uses less digits than its factorization.

196997149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36939.

The product of its digits is 1102248, while the sum is 55.

The square root of 196997149 is about 14035.5672845810. The cubic root of 196997149 is about 581.8619798047.

The spelling of 196997149 in words is "one hundred ninety-six million, nine hundred ninety-seven thousand, one hundred forty-nine".