3198149 has 4 divisors (see below), whose sum is σ = 3308460. Its totient is φ = 3087840.

The previous prime is 3198133. The next prime is 3198161. The reversal of 3198149 is 9418913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9418913 = 7 ⋅1345559.

It can be written as a sum of positive squares in 2 ways, for example, as 1288225 + 1909924 = 1135^2 + 1382^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198149 - 2⁴ = 3198133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198109) 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, 55112 + ... + 55169.

It is an arithmetic number, because the mean of its divisors is an integer number (827115).

Almost surely, 2^3198149 is an apocalyptic number.

It is an amenable number.

3198149 is a deficient number, since it is larger than the sum of its proper divisors (110311).

3198149 is a wasteful number, since it uses less digits than its factorization.

3198149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110310.

The product of its digits is 7776, while the sum is 35.

The square root of 3198149 is about 1788.3369369333. The cubic root of 3198149 is about 147.3328413725.

The spelling of 3198149 in words is "three million, one hundred ninety-eight thousand, one hundred forty-nine".