1155303453 has 16 divisors (see below), whose sum is σ = 1581350400. Its totient is φ = 749809920.

The previous prime is 1155303449. The next prime is 1155303467. The reversal of 1155303453 is 3543035511.

It is not a de Polignac number, because 1155303453 - 2² = 1155303449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155303453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155307453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49113 + ... + 68721.

It is an arithmetic number, because the mean of its divisors is an integer number (98834400).

Almost surely, 2^1155303453 is an apocalyptic number.

It is an amenable number.

1155303453 is a deficient number, since it is larger than the sum of its proper divisors (426046947).

1155303453 is a wasteful number, since it uses less digits than its factorization.

1155303453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20132.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1155303453 is about 33989.7551182706. The cubic root of 1155303453 is about 1049.2976264131.

Adding to 1155303453 its reverse (3543035511), we get a palindrome (4698338964).

The spelling of 1155303453 in words is "one billion, one hundred fifty-five million, three hundred three thousand, four hundred fifty-three".