1420320067 has 2 divisors, whose sum is σ = 1420320068. Its totient is φ = 1420320066.

The previous prime is 1420320049. The next prime is 1420320079. The reversal of 1420320067 is 7600230241.

It is a strong prime.

It is an emirp because it is prime and its reverse (7600230241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420320067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420320667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710160033 + 710160034.

It is an arithmetic number, because the mean of its divisors is an integer number (710160034).

Almost surely, 2^1420320067 is an apocalyptic number.

1420320067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420320067 is an equidigital number, since it uses as much as digits as its factorization.

1420320067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1420320067 is about 37687.1339716885. The cubic root of 1420320067 is about 1124.0753071866.

The spelling of 1420320067 in words is "one billion, four hundred twenty million, three hundred twenty thousand, sixty-seven".