1412779321 has 2 divisors, whose sum is σ = 1412779322. Its totient is φ = 1412779320.

The previous prime is 1412779297. The next prime is 1412779327. The reversal of 1412779321 is 1239772141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1364268096 + 48511225 = 36936^2 + 6965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1412779321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1412779327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706389660 + 706389661.

It is an arithmetic number, because the mean of its divisors is an integer number (706389661).

Almost surely, 2^1412779321 is an apocalyptic number.

It is an amenable number.

1412779321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1412779321 is an equidigital number, since it uses as much as digits as its factorization.

1412779321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 1412779321 is about 37586.9567935474. The cubic root of 1412779321 is about 1122.0824672508.

The spelling of 1412779321 in words is "one billion, four hundred twelve million, seven hundred seventy-nine thousand, three hundred twenty-one".