1145231033 has 2 divisors, whose sum is σ = 1145231034. Its totient is φ = 1145231032.

The previous prime is 1145231029. The next prime is 1145231039. The reversal of 1145231033 is 3301325411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 908901904 + 236329129 = 30148^2 + 15373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145231033 - 2² = 1145231029 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145231039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572615516 + 572615517.

It is an arithmetic number, because the mean of its divisors is an integer number (572615517).

Almost surely, 2^1145231033 is an apocalyptic number.

It is an amenable number.

1145231033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145231033 is an equidigital number, since it uses as much as digits as its factorization.

1145231033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1145231033 is about 33841.2622843770. The cubic root of 1145231033 is about 1046.2393156566.

Adding to 1145231033 its reverse (3301325411), we get a palindrome (4446556444).

The spelling of 1145231033 in words is "one billion, one hundred forty-five million, two hundred thirty-one thousand, thirty-three".