2119621 has 8 divisors (see below), whose sum is σ = 2550080. Its totient is φ = 1721088.

The previous prime is 2119613. The next prime is 2119627. The reversal of 2119621 is 1269112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2119621 - 2³ = 2119613 is a prime.

It is a Duffinian number.

2119621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2119592 and 2119601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7836 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (318760).

2^2119621 is an apocalyptic number.

It is an amenable number.

2119621 is a deficient number, since it is larger than the sum of its proper divisors (430459).

2119621 is a wasteful number, since it uses less digits than its factorization.

2119621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963.

The product of its digits is 216, while the sum is 22.

The square root of 2119621 is about 1455.8918229044. The cubic root of 2119621 is about 128.4555100415.

The spelling of 2119621 in words is "two million, one hundred nineteen thousand, six hundred twenty-one".