1421352451 has 2 divisors, whose sum is σ = 1421352452. Its totient is φ = 1421352450.

The previous prime is 1421352433. The next prime is 1421352461. The reversal of 1421352451 is 1542531241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1542531241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1421352451 - 2¹⁷ = 1421221379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421352461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710676225 + 710676226.

It is an arithmetic number, because the mean of its divisors is an integer number (710676226).

Almost surely, 2^1421352451 is an apocalyptic number.

1421352451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421352451 is an equidigital number, since it uses as much as digits as its factorization.

1421352451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 28.

The square root of 1421352451 is about 37700.8282535013. The cubic root of 1421352451 is about 1124.3475923640.

Adding to 1421352451 its reverse (1542531241), we get a palindrome (2963883692).

The spelling of 1421352451 in words is "one billion, four hundred twenty-one million, three hundred fifty-two thousand, four hundred fifty-one".