1416743621 has 2 divisors, whose sum is σ = 1416743622. Its totient is φ = 1416743620.

The previous prime is 1416743593. The next prime is 1416743623. The reversal of 1416743621 is 1263476141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719044225 + 697699396 = 26815^2 + 26414^2 .

It is an emirp because it is prime and its reverse (1263476141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1416743621 - 2⁶ = 1416743557 is a prime.

It is a Sophie Germain prime.

Together with 1416743623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1416743623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708371810 + 708371811.

It is an arithmetic number, because the mean of its divisors is an integer number (708371811).

Almost surely, 2^1416743621 is an apocalyptic number.

It is an amenable number.

1416743621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1416743621 is an equidigital number, since it uses as much as digits as its factorization.

1416743621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 1416743621 is about 37639.6549001183. The cubic root of 1416743621 is about 1123.1310191544.

The spelling of 1416743621 in words is "one billion, four hundred sixteen million, seven hundred forty-three thousand, six hundred twenty-one".