1155314453 has 4 divisors (see below), whose sum is σ = 1155487020. Its totient is φ = 1155141888.

The previous prime is 1155314443. The next prime is 1155314467. The reversal of 1155314453 is 3544135511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3544135511 = 7 ⋅506305073.

It can be written as a sum of positive squares in 2 ways, for example, as 387026929 + 768287524 = 19673^2 + 27718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155314453 - 2¹⁸ = 1155052309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155314443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75818 + ... + 89771.

It is an arithmetic number, because the mean of its divisors is an integer number (288871755).

Almost surely, 2^1155314453 is an apocalyptic number.

It is an amenable number.

1155314453 is a deficient number, since it is larger than the sum of its proper divisors (172567).

1155314453 is an equidigital number, since it uses as much as digits as its factorization.

1155314453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172566.

The product of its digits is 18000, while the sum is 32.

The square root of 1155314453 is about 33989.9169313489. The cubic root of 1155314453 is about 1049.3009566311.

Adding to 1155314453 its reverse (3544135511), we get a palindrome (4699449964).

The spelling of 1155314453 in words is "one billion, one hundred fifty-five million, three hundred fourteen thousand, four hundred fifty-three".