1115535453 has 4 divisors (see below), whose sum is σ = 1487380608. Its totient is φ = 743690300.

The previous prime is 1115535409. The next prime is 1115535469. The reversal of 1115535453 is 3545355111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3545355111 = 3 ⋅1181785037.

It is a cyclic number.

It is not a de Polignac number, because 1115535453 - 2⁶ = 1115535389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115535653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185922573 + ... + 185922578.

It is an arithmetic number, because the mean of its divisors is an integer number (371845152).

Almost surely, 2^1115535453 is an apocalyptic number.

It is an amenable number.

1115535453 is a deficient number, since it is larger than the sum of its proper divisors (371845155).

1115535453 is an equidigital number, since it uses as much as digits as its factorization.

1115535453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371845154.

The product of its digits is 22500, while the sum is 33.

The square root of 1115535453 is about 33399.6325279186. The cubic root of 1115535453 is about 1037.1170938669.

The spelling of 1115535453 in words is "one billion, one hundred fifteen million, five hundred thirty-five thousand, four hundred fifty-three".