1282237949 has 2 divisors, whose sum is σ = 1282237950. Its totient is φ = 1282237948.

The previous prime is 1282237907. The next prime is 1282237963. The reversal of 1282237949 is 9497322821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812649049 + 469588900 = 28507^2 + 21670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1282237949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1282297949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641118974 + 641118975.

It is an arithmetic number, because the mean of its divisors is an integer number (641118975).

Almost surely, 2^1282237949 is an apocalyptic number.

It is an amenable number.

1282237949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282237949 is an equidigital number, since it uses as much as digits as its factorization.

1282237949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 1282237949 is about 35808.3502691760. The cubic root of 1282237949 is about 1086.3994623962.

The spelling of 1282237949 in words is "one billion, two hundred eighty-two million, two hundred thirty-seven thousand, nine hundred forty-nine".