1145243093 has 2 divisors, whose sum is σ = 1145243094. Its totient is φ = 1145243092.

The previous prime is 1145243087. The next prime is 1145243173. The reversal of 1145243093 is 3903425411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 963047089 + 182196004 = 31033^2 + 13498^2 .

It is an emirp because it is prime and its reverse (3903425411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145243093 - 2⁸ = 1145242837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145243023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572621546 + 572621547.

It is an arithmetic number, because the mean of its divisors is an integer number (572621547).

Almost surely, 2^1145243093 is an apocalyptic number.

It is an amenable number.

1145243093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145243093 is an equidigital number, since it uses as much as digits as its factorization.

1145243093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1145243093 is about 33841.4404687507. The cubic root of 1145243093 is about 1046.2429881621.

It can be divided in two parts, 11452 and 43093, that added together give a palindrome (54545).

The spelling of 1145243093 in words is "one billion, one hundred forty-five million, two hundred forty-three thousand, ninety-three".