2121369 has 8 divisors (see below), whose sum is σ = 2977440. Its totient is φ = 1339776.

The previous prime is 2121367. The next prime is 2121373. The reversal of 2121369 is 9631212.

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

It is not a de Polignac number, because 2121369 - 2¹ = 2121367 is a prime.

It is a super-2 number, since 2×2121369² = 9000412868322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121367) 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, 18552 + ... + 18665.

It is an arithmetic number, because the mean of its divisors is an integer number (372180).

2^2121369 is an apocalyptic number.

It is an amenable number.

2121369 is a deficient number, since it is larger than the sum of its proper divisors (856071).

2121369 is a wasteful number, since it uses less digits than its factorization.

2121369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37239.

The product of its digits is 648, while the sum is 24.

The square root of 2121369 is about 1456.4920185157. The cubic root of 2121369 is about 128.4908117197.

The spelling of 2121369 in words is "two million, one hundred twenty-one thousand, three hundred sixty-nine".