2113049 has 4 divisors (see below), whose sum is σ = 2237364. Its totient is φ = 1988736.

The previous prime is 2113043. The next prime is 2113087. The reversal of 2113049 is 9403112.

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 1338649 + 774400 = 1157^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113049 - 2⁸ = 2112793 is a prime.

It is an Ulam number.

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 2113049.

It is not an unprimeable number, because it can be changed into a prime (2113043) 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, 62132 + ... + 62165.

It is an arithmetic number, because the mean of its divisors is an integer number (559341).

2^2113049 is an apocalyptic number.

It is an amenable number.

2113049 is a deficient number, since it is larger than the sum of its proper divisors (124315).

2113049 is a wasteful number, since it uses less digits than its factorization.

2113049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124314.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2113049 is about 1453.6330348475. The cubic root of 2113049 is about 128.3226114991.

The spelling of 2113049 in words is "two million, one hundred thirteen thousand, forty-nine".