1420541791 has 2 divisors, whose sum is σ = 1420541792. Its totient is φ = 1420541790.

The previous prime is 1420541789. The next prime is 1420541869. The reversal of 1420541791 is 1971450241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420541791 - 2¹ = 1420541789 is a prime.

Together with 1420541789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420541741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710270895 + 710270896.

It is an arithmetic number, because the mean of its divisors is an integer number (710270896).

Almost surely, 2^1420541791 is an apocalyptic number.

1420541791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420541791 is an equidigital number, since it uses as much as digits as its factorization.

1420541791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1420541791 is about 37690.0754974038. The cubic root of 1420541791 is about 1124.1337967038.

The spelling of 1420541791 in words is "one billion, four hundred twenty million, five hundred forty-one thousand, seven hundred ninety-one".