1421233487 has 2 divisors, whose sum is σ = 1421233488. Its totient is φ = 1421233486.

The previous prime is 1421233393. The next prime is 1421233543. The reversal of 1421233487 is 7843321241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421233487 - 2²⁰ = 1420184911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421233787) 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, 710616743 + 710616744.

It is an arithmetic number, because the mean of its divisors is an integer number (710616744).

Almost surely, 2^1421233487 is an apocalyptic number.

1421233487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421233487 is an equidigital number, since it uses as much as digits as its factorization.

1421233487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 1421233487 is about 37699.2504832656. The cubic root of 1421233487 is about 1124.3162230348.

The spelling of 1421233487 in words is "one billion, four hundred twenty-one million, two hundred thirty-three thousand, four hundred eighty-seven".