2049311 has 4 divisors (see below), whose sum is σ = 2235624. Its totient is φ = 1863000.

The previous prime is 2049301. The next prime is 2049331. The reversal of 2049311 is 1139402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2049311 - 2¹⁸ = 1787167 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 (2049301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93140 + ... + 93161.

It is an arithmetic number, because the mean of its divisors is an integer number (558906).

2^2049311 is an apocalyptic number.

2049311 is a deficient number, since it is larger than the sum of its proper divisors (186313).

2049311 is a wasteful number, since it uses less digits than its factorization.

2049311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186312.

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

The square root of 2049311 is about 1431.5414768703. The cubic root of 2049311 is about 127.0191758095.

Subtracting from 2049311 its reverse (1139402), we obtain a palindrome (909909).

The spelling of 2049311 in words is "two million, forty-nine thousand, three hundred eleven".