1421851199 has 8 divisors (see below), whose sum is σ = 1427136480. Its totient is φ = 1416576096.

The previous prime is 1421851181. The next prime is 1421851217. The reversal of 1421851199 is 9911581241.

It is an interprime number because it is at equal distance from previous prime (1421851181) and next prime (1421851217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421851199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421851129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372569 + ... + 376365.

It is an arithmetic number, because the mean of its divisors is an integer number (178392060).

Almost surely, 2^1421851199 is an apocalyptic number.

1421851199 is a deficient number, since it is larger than the sum of its proper divisors (5285281).

1421851199 is an equidigital number, since it uses as much as digits as its factorization.

1421851199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089.

The product of its digits is 25920, while the sum is 41.

The square root of 1421851199 is about 37707.4422229883. The cubic root of 1421851199 is about 1124.4790869686.

The spelling of 1421851199 in words is "one billion, four hundred twenty-one million, eight hundred fifty-one thousand, one hundred ninety-nine".