1421066499 has 16 divisors (see below), whose sum is σ = 2009124000. Its totient is φ = 890355200.

The previous prime is 1421066473. The next prime is 1421066509. The reversal of 1421066499 is 9946601241.

It is a cyclic number.

It is not a de Polignac number, because 1421066499 - 2⁷ = 1421066371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421066499.

It is not an unprimeable number, because it can be changed into a prime (1421066419) 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 in 15 ways as a sum of consecutive naturals, for example, 15877 + ... + 55625.

It is an arithmetic number, because the mean of its divisors is an integer number (125570250).

Almost surely, 2^1421066499 is an apocalyptic number.

1421066499 is a deficient number, since it is larger than the sum of its proper divisors (588057501).

1421066499 is a wasteful number, since it uses less digits than its factorization.

1421066499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40470.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1421066499 is about 37697.0356792149. The cubic root of 1421066499 is about 1124.2721874200.

The spelling of 1421066499 in words is "one billion, four hundred twenty-one million, sixty-six thousand, four hundred ninety-nine".