1421483891 has 2 divisors, whose sum is σ = 1421483892. Its totient is φ = 1421483890.

The previous prime is 1421483887. The next prime is 1421483911. The reversal of 1421483891 is 1983841241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421483891 - 2² = 1421483887 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421483821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710741945 + 710741946.

It is an arithmetic number, because the mean of its divisors is an integer number (710741946).

Almost surely, 2^1421483891 is an apocalyptic number.

1421483891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421483891 is an equidigital number, since it uses as much as digits as its factorization.

1421483891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The square root of 1421483891 is about 37702.5714109794. The cubic root of 1421483891 is about 1124.3822494242.

The spelling of 1421483891 in words is "one billion, four hundred twenty-one million, four hundred eighty-three thousand, eight hundred ninety-one".