1155254303 has 8 divisors (see below), whose sum is σ = 1345202208. Its totient is φ = 971534304.

The previous prime is 1155254299. The next prime is 1155254311. The reversal of 1155254303 is 3034525511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155254303 - 2² = 1155254299 is a prime.

It is a super-2 number, since 2×1155254303² = 2669225009200031618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155254323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556576 + ... + 1557317.

It is an arithmetic number, because the mean of its divisors is an integer number (168150276).

Almost surely, 2^1155254303 is an apocalyptic number.

1155254303 is a deficient number, since it is larger than the sum of its proper divisors (189947905).

1155254303 is an equidigital number, since it uses as much as digits as its factorization.

1155254303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113953.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1155254303 is about 33989.0320986050. The cubic root of 1155254303 is about 1049.2827461351.

Adding to 1155254303 its reverse (3034525511), we get a palindrome (4189779814).

The spelling of 1155254303 in words is "one billion, one hundred fifty-five million, two hundred fifty-four thousand, three hundred three".