1421146799 has 2 divisors, whose sum is σ = 1421146800. Its totient is φ = 1421146798.

The previous prime is 1421146789. The next prime is 1421146843. The reversal of 1421146799 is 9976411241.

It is an a-pointer prime, because the next prime (1421146843) can be obtained adding 1421146799 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421146799 - 2⁸ = 1421146543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421146729) 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, 710573399 + 710573400.

It is an arithmetic number, because the mean of its divisors is an integer number (710573400).

Almost surely, 2^1421146799 is an apocalyptic number.

1421146799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421146799 is an equidigital number, since it uses as much as digits as its factorization.

1421146799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 1421146799 is about 37698.1007346524. The cubic root of 1421146799 is about 1124.2933633834.

The spelling of 1421146799 in words is "one billion, four hundred twenty-one million, one hundred forty-six thousand, seven hundred ninety-nine".