2439121 has 4 divisors (see below), whose sum is σ = 2468592. Its totient is φ = 2409652.

The previous prime is 2439097. The next prime is 2439133. The reversal of 2439121 is 1219342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2439121 - 2⁹ = 2438609 is a prime.

It is a super-2 number, since 2×2439121² = 11898622505282, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2439092 and 2439101.

It is not an unprimeable number, because it can be changed into a prime (2439181) 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, 14611 + ... + 14776.

It is an arithmetic number, because the mean of its divisors is an integer number (617148).

2^2439121 is an apocalyptic number.

It is an amenable number.

2439121 is a deficient number, since it is larger than the sum of its proper divisors (29471).

2439121 is an equidigital number, since it uses as much as digits as its factorization.

2439121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29470.

The product of its digits is 432, while the sum is 22.

The square root of 2439121 is about 1561.7685487933. The cubic root of 2439121 is about 134.6101418115.

The spelling of 2439121 in words is "two million, four hundred thirty-nine thousand, one hundred twenty-one".