1420246651 has 2 divisors, whose sum is σ = 1420246652. Its totient is φ = 1420246650.

The previous prime is 1420246627. The next prime is 1420246669. The reversal of 1420246651 is 1566420241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420246651 - 2¹³ = 1420238459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420246151) 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, 710123325 + 710123326.

It is an arithmetic number, because the mean of its divisors is an integer number (710123326).

Almost surely, 2^1420246651 is an apocalyptic number.

1420246651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420246651 is an equidigital number, since it uses as much as digits as its factorization.

1420246651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1420246651 is about 37686.1599396914. The cubic root of 1420246651 is about 1124.0559391261.

Adding to 1420246651 its reverse (1566420241), we get a palindrome (2986666892).

The spelling of 1420246651 in words is "one billion, four hundred twenty million, two hundred forty-six thousand, six hundred fifty-one".