1145633441 has 2 divisors, whose sum is σ = 1145633442. Its totient is φ = 1145633440.

The previous prime is 1145633407. The next prime is 1145633449. The reversal of 1145633441 is 1443365411.

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., 692795041 + 452838400 = 26321^2 + 21280^2 .

It is an emirp because it is prime and its reverse (1443365411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145633441 is a prime.

It is a super-2 number, since 2×1145633441² = 2624951962275000962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145633398 and 1145633407.

It is not a weakly prime, because it can be changed into another prime (1145633449) 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, 572816720 + 572816721.

It is an arithmetic number, because the mean of its divisors is an integer number (572816721).

Almost surely, 2^1145633441 is an apocalyptic number.

It is an amenable number.

1145633441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145633441 is an equidigital number, since it uses as much as digits as its factorization.

1145633441 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1145633441 is about 33847.2072850922. The cubic root of 1145633441 is about 1046.3618428313.

Adding to 1145633441 its reverse (1443365411), we get a palindrome (2588998852).

The spelling of 1145633441 in words is "one billion, one hundred forty-five million, six hundred thirty-three thousand, four hundred forty-one".