1121453455 has 4 divisors (see below), whose sum is σ = 1345744152. Its totient is φ = 897162760.

The previous prime is 1121453441. The next prime is 1121453477. The reversal of 1121453455 is 5543541211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1121453455 - 2¹⁵ = 1121420687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 112145341 + ... + 112145350.

It is an arithmetic number, because the mean of its divisors is an integer number (336436038).

Almost surely, 2^1121453455 is an apocalyptic number.

1121453455 is a deficient number, since it is larger than the sum of its proper divisors (224290697).

1121453455 is an equidigital number, since it uses as much as digits as its factorization.

1121453455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224290696.

The product of its digits is 12000, while the sum is 31.

The square root of 1121453455 is about 33488.1091583266. The cubic root of 1121453455 is about 1038.9478557388.

Adding to 1121453455 its reverse (5543541211), we get a palindrome (6664994666).

It can be divided in two parts, 112145 and 3455, that added together give a square (115600 = 340²).

The spelling of 1121453455 in words is "one billion, one hundred twenty-one million, four hundred fifty-three thousand, four hundred fifty-five".