1420541651 has 2 divisors, whose sum is σ = 1420541652. Its totient is φ = 1420541650.

The previous prime is 1420541611. The next prime is 1420541693. The reversal of 1420541651 is 1561450241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420541651 - 2²² = 1416347347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420541611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710270825 + 710270826.

It is an arithmetic number, because the mean of its divisors is an integer number (710270826).

Almost surely, 2^1420541651 is an apocalyptic number.

1420541651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420541651 is an equidigital number, since it uses as much as digits as its factorization.

1420541651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1420541651 is about 37690.0736401509. The cubic root of 1420541651 is about 1124.1337597746.

Adding to 1420541651 its reverse (1561450241), we get a palindrome (2981991892).

The spelling of 1420541651 in words is "one billion, four hundred twenty million, five hundred forty-one thousand, six hundred fifty-one".