2481491 has 2 divisors, whose sum is σ = 2481492. Its totient is φ = 2481490.

The previous prime is 2481461. The next prime is 2481497. The reversal of 2481491 is 1941842.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2481491 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2481497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1240745 + 1240746.

It is an arithmetic number, because the mean of its divisors is an integer number (1240746).

2^2481491 is an apocalyptic number.

2481491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2481491 is an equidigital number, since it uses as much as digits as its factorization.

2481491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 2481491 is about 1575.2748966450. The cubic root of 2481491 is about 135.3851097854.

The spelling of 2481491 in words is "two million, four hundred eighty-one thousand, four hundred ninety-one".