2921249 has 2 divisors, whose sum is σ = 2921250. Its totient is φ = 2921248.

The previous prime is 2921239. The next prime is 2921273. The reversal of 2921249 is 9421292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 165649 = 1660^2 + 407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2921249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2921239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460624 + 1460625.

It is an arithmetic number, because the mean of its divisors is an integer number (1460625).

2^2921249 is an apocalyptic number.

It is an amenable number.

2921249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2921249 is an equidigital number, since it uses as much as digits as its factorization.

2921249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 2921249 is about 1709.1661709734. The cubic root of 2921249 is about 142.9517662159.

The spelling of 2921249 in words is "two million, nine hundred twenty-one thousand, two hundred forty-nine".