1420213477 has 2 divisors, whose sum is σ = 1420213478. Its totient is φ = 1420213476.

The previous prime is 1420213411. The next prime is 1420213481. The reversal of 1420213477 is 7743120241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 961868196 + 458345281 = 31014^2 + 21409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420213477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420213777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710106738 + 710106739.

It is an arithmetic number, because the mean of its divisors is an integer number (710106739).

Almost surely, 2^1420213477 is an apocalyptic number.

It is an amenable number.

1420213477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420213477 is an equidigital number, since it uses as much as digits as its factorization.

1420213477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 1420213477 is about 37685.7198020683. The cubic root of 1420213477 is about 1124.0471871904.

The spelling of 1420213477 in words is "one billion, four hundred twenty million, two hundred thirteen thousand, four hundred seventy-seven".