1219481 has 2 divisors, whose sum is σ = 1219482. Its totient is φ = 1219480.

The previous prime is 1219469. The next prime is 1219487. The reversal of 1219481 is 1849121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 960400 + 259081 = 980^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1219481 - 2¹⁰ = 1218457 is a prime.

It is a super-2 number, since 2×1219481² = 2974267818722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1219481.

It is not a weakly prime, because it can be changed into another prime (1219487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609740 + 609741.

It is an arithmetic number, because the mean of its divisors is an integer number (609741).

2^1219481 is an apocalyptic number.

It is an amenable number.

1219481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219481 is an equidigital number, since it uses as much as digits as its factorization.

1219481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 26.

The square root of 1219481 is about 1104.3011364660. The cubic root of 1219481 is about 106.8378187639.

The spelling of 1219481 in words is "one million, two hundred nineteen thousand, four hundred eighty-one".