1454243491 has 2 divisors, whose sum is σ = 1454243492. Its totient is φ = 1454243490.

The previous prime is 1454243431. The next prime is 1454243501. The reversal of 1454243491 is 1943424541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1454243491 - 2¹¹ = 1454241443 is a prime.

It is a super-2 number, since 2×1454243491² = 4229648262231734162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1454243491.

It is not a weakly prime, because it can be changed into another prime (1454243431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727121745 + 727121746.

It is an arithmetic number, because the mean of its divisors is an integer number (727121746).

Almost surely, 2^1454243491 is an apocalyptic number.

1454243491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454243491 is an equidigital number, since it uses as much as digits as its factorization.

1454243491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 1454243491 is about 38134.5445888633. The cubic root of 1454243491 is about 1132.9542586220.

The spelling of 1454243491 in words is "one billion, four hundred fifty-four million, two hundred forty-three thousand, four hundred ninety-one".