1421214293 has 2 divisors, whose sum is σ = 1421214294. Its totient is φ = 1421214292.

The previous prime is 1421214271. The next prime is 1421214323. The reversal of 1421214293 is 3924121241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1257553444 + 163660849 = 35462^2 + 12793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421214293 is a prime.

It is a super-3 number, since 3×1421214293³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421214253) 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, 710607146 + 710607147.

It is an arithmetic number, because the mean of its divisors is an integer number (710607147).

Almost surely, 2^1421214293 is an apocalyptic number.

It is an amenable number.

1421214293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421214293 is an equidigital number, since it uses as much as digits as its factorization.

1421214293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 1421214293 is about 37698.9959150108. The cubic root of 1421214293 is about 1124.3111616514.

The spelling of 1421214293 in words is "one billion, four hundred twenty-one million, two hundred fourteen thousand, two hundred ninety-three".