1416323561 has 2 divisors, whose sum is σ = 1416323562. Its totient is φ = 1416323560.

The previous prime is 1416323543. The next prime is 1416323563. The reversal of 1416323561 is 1653236141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114224400 + 302099161 = 33380^2 + 17381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1416323561 is a prime.

Together with 1416323563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1416323563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708161780 + 708161781.

It is an arithmetic number, because the mean of its divisors is an integer number (708161781).

Almost surely, 2^1416323561 is an apocalyptic number.

It is an amenable number.

1416323561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1416323561 is an equidigital number, since it uses as much as digits as its factorization.

1416323561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 1416323561 is about 37634.0744671634. The cubic root of 1416323561 is about 1123.0200065844.

The spelling of 1416323561 in words is "one billion, four hundred sixteen million, three hundred twenty-three thousand, five hundred sixty-one".