2162049149 has 4 divisors (see below), whose sum is σ = 2328360636. Its totient is φ = 1995737664.

The previous prime is 2162049133. The next prime is 2162049167. The reversal of 2162049149 is 9419402612.

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 186868900 + 1975180249 = 13670^2 + 44443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162049149 - 2⁴ = 2162049133 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 (2162049119) 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, 83155724 + ... + 83155749.

It is an arithmetic number, because the mean of its divisors is an integer number (582090159).

Almost surely, 2^2162049149 is an apocalyptic number.

It is an amenable number.

2162049149 is a deficient number, since it is larger than the sum of its proper divisors (166311487).

2162049149 is a wasteful number, since it uses less digits than its factorization.

2162049149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166311486.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2162049149 is about 46497.8402616724. The cubic root of 2162049149 is about 1293.0694586823.

The spelling of 2162049149 in words is "two billion, one hundred sixty-two million, forty-nine thousand, one hundred forty-nine".