2119801 has 4 divisors (see below), whose sum is σ = 2135412. Its totient is φ = 2104192.

The previous prime is 2119783. The next prime is 2119829. The reversal of 2119801 is 1089112.

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 1071225 + 1048576 = 1035^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119801 - 2⁷ = 2119673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2119301) 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, 7600 + ... + 7873.

It is an arithmetic number, because the mean of its divisors is an integer number (533853).

2^2119801 is an apocalyptic number.

It is an amenable number.

2119801 is a deficient number, since it is larger than the sum of its proper divisors (15611).

2119801 is a wasteful number, since it uses less digits than its factorization.

2119801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15610.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 2119801 is about 1455.9536393718. The cubic root of 2119801 is about 128.4591461219.

The spelling of 2119801 in words is "two million, one hundred nineteen thousand, eight hundred one".