1412843921 has 2 divisors, whose sum is σ = 1412843922. Its totient is φ = 1412843920.

The previous prime is 1412843917. The next prime is 1412843963. The reversal of 1412843921 is 1293482141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1358659600 + 54184321 = 36860^2 + 7361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1412843921 - 2² = 1412843917 is a prime.

It is a super-2 number, since 2×1412843921² = 3992255890213308482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1412843521) 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, 706421960 + 706421961.

It is an arithmetic number, because the mean of its divisors is an integer number (706421961).

Almost surely, 2^1412843921 is an apocalyptic number.

It is an amenable number.

1412843921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1412843921 is an equidigital number, since it uses as much as digits as its factorization.

1412843921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 35.

The square root of 1412843921 is about 37587.8161243773. The cubic root of 1412843921 is about 1122.0995695733.

The spelling of 1412843921 in words is "one billion, four hundred twelve million, eight hundred forty-three thousand, nine hundred twenty-one".