1153145243 has 2 divisors, whose sum is σ = 1153145244. Its totient is φ = 1153145242.

The previous prime is 1153145239. The next prime is 1153145261. The reversal of 1153145243 is 3425413511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153145243 - 2² = 1153145239 is a prime.

It is not a weakly prime, because it can be changed into another prime (1153145443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576572621 + 576572622.

It is an arithmetic number, because the mean of its divisors is an integer number (576572622).

Almost surely, 2^1153145243 is an apocalyptic number.

1153145243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153145243 is an equidigital number, since it uses as much as digits as its factorization.

1153145243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 1153145243 is about 33957.9923287582. The cubic root of 1153145243 is about 1048.6438252405.

Adding to 1153145243 its reverse (3425413511), we get a palindrome (4578558754).

The spelling of 1153145243 in words is "one billion, one hundred fifty-three million, one hundred forty-five thousand, two hundred forty-three".