1451163443 has 2 divisors, whose sum is σ = 1451163444. Its totient is φ = 1451163442.

The previous prime is 1451163433. The next prime is 1451163457. The reversal of 1451163443 is 3443611541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1451163443 - 2⁶ = 1451163379 is a prime.

It is a super-2 number, since 2×1451163443² = 4211750676599228498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1451163433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725581721 + 725581722.

It is an arithmetic number, because the mean of its divisors is an integer number (725581722).

Almost surely, 2^1451163443 is an apocalyptic number.

1451163443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451163443 is an equidigital number, since it uses as much as digits as its factorization.

1451163443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 1451163443 is about 38094.1392211453. The cubic root of 1451163443 is about 1132.1538378726.

Adding to 1451163443 its reverse (3443611541), we get a palindrome (4894774984).

The spelling of 1451163443 in words is "one billion, four hundred fifty-one million, one hundred sixty-three thousand, four hundred forty-three".