1153103453 has 4 divisors (see below), whose sum is σ = 1153231260. Its totient is φ = 1152975648.

The previous prime is 1153103447. The next prime is 1153103461. The reversal of 1153103453 is 3543013511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3543013511 = 463 ⋅7652297.

It can be written as a sum of positive squares in 2 ways, for example, as 432556804 + 720546649 = 20798^2 + 26843^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153103453 - 2¹² = 1153099357 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 (1153103443) 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, 49250 + ... + 68787.

It is an arithmetic number, because the mean of its divisors is an integer number (288307815).

Almost surely, 2^1153103453 is an apocalyptic number.

It is an amenable number.

1153103453 is a deficient number, since it is larger than the sum of its proper divisors (127807).

1153103453 is an equidigital number, since it uses as much as digits as its factorization.

1153103453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127806.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1153103453 is about 33957.3770041209. The cubic root of 1153103453 is about 1048.6311574651.

Adding to 1153103453 its reverse (3543013511), we get a palindrome (4696116964).

The spelling of 1153103453 in words is "one billion, one hundred fifty-three million, one hundred three thousand, four hundred fifty-three".