1155140303 has 2 divisors, whose sum is σ = 1155140304. Its totient is φ = 1155140302.

The previous prime is 1155140281. The next prime is 1155140309. The reversal of 1155140303 is 3030415511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155140303 - 2⁸ = 1155140047 is a prime.

It is a super-2 number, since 2×1155140303² = 2668698239229863618, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155140309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577570151 + 577570152.

It is an arithmetic number, because the mean of its divisors is an integer number (577570152).

Almost surely, 2^1155140303 is an apocalyptic number.

1155140303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155140303 is an equidigital number, since it uses as much as digits as its factorization.

1155140303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1155140303 is about 33987.3550456637. The cubic root of 1155140303 is about 1049.2482307423.

Adding to 1155140303 its reverse (3030415511), we get a palindrome (4185555814).

The spelling of 1155140303 in words is "one billion, one hundred fifty-five million, one hundred forty thousand, three hundred three".