1421454241 has 2 divisors, whose sum is σ = 1421454242. Its totient is φ = 1421454240.

The previous prime is 1421454217. The next prime is 1421454263. The reversal of 1421454241 is 1424541241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 937278225 + 484176016 = 30615^2 + 22004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421454241 - 2⁷ = 1421454113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421454841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710727120 + 710727121.

It is an arithmetic number, because the mean of its divisors is an integer number (710727121).

Almost surely, 2^1421454241 is an apocalyptic number.

It is an amenable number.

1421454241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421454241 is an equidigital number, since it uses as much as digits as its factorization.

1421454241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 28.

The square root of 1421454241 is about 37702.1781996744. The cubic root of 1421454241 is about 1124.3744317332.

Adding to 1421454241 its reverse (1424541241), we get a palindrome (2845995482).

The spelling of 1421454241 in words is "one billion, four hundred twenty-one million, four hundred fifty-four thousand, two hundred forty-one".