2427121 has 4 divisors (see below), whose sum is σ = 2532672. Its totient is φ = 2321572.

The previous prime is 2427109. The next prime is 2427137. The reversal of 2427121 is 1217242.

It is a happy number.

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 2427121 - 2⁹ = 2426609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2427101) 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, 52741 + ... + 52786.

It is an arithmetic number, because the mean of its divisors is an integer number (633168).

2^2427121 is an apocalyptic number.

It is an amenable number.

2427121 is a deficient number, since it is larger than the sum of its proper divisors (105551).

2427121 is a wasteful number, since it uses less digits than its factorization.

2427121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105550.

The product of its digits is 224, while the sum is 19.

The square root of 2427121 is about 1557.9220134525. The cubic root of 2427121 is about 134.3890269114.

The spelling of 2427121 in words is "two million, four hundred twenty-seven thousand, one hundred twenty-one".