2949281 has 2 divisors, whose sum is σ = 2949282. Its totient is φ = 2949280.

The previous prime is 2949277. The next prime is 2949283. The reversal of 2949281 is 1829492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 341056 = 1615^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 2949281 - 2² = 2949277 is a prime.

It is a super-2 number, since 2×2949281² = 17396516833922, which contains 22 as substring.

Together with 2949283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2949283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474640 + 1474641.

It is an arithmetic number, because the mean of its divisors is an integer number (1474641).

2^2949281 is an apocalyptic number.

It is an amenable number.

2949281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2949281 is an equidigital number, since it uses as much as digits as its factorization.

2949281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 2949281 is about 1717.3470819843. The cubic root of 2949281 is about 143.4075614567.

The spelling of 2949281 in words is "two million, nine hundred forty-nine thousand, two hundred eighty-one".