1143453455 has 4 divisors (see below), whose sum is σ = 1372144152. Its totient is φ = 914762760.

The previous prime is 1143453449. The next prime is 1143453457. The reversal of 1143453455 is 5543543411.

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

It is not a de Polignac number, because 1143453455 - 2⁶ = 1143453391 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 (1143453457) 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, 114345341 + ... + 114345350.

It is an arithmetic number, because the mean of its divisors is an integer number (343036038).

Almost surely, 2^1143453455 is an apocalyptic number.

1143453455 is a deficient number, since it is larger than the sum of its proper divisors (228690697).

1143453455 is an equidigital number, since it uses as much as digits as its factorization.

1143453455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228690696.

The product of its digits is 72000, while the sum is 35.

The square root of 1143453455 is about 33814.9886145183. The cubic root of 1143453455 is about 1045.6977262345.

Adding to 1143453455 its reverse (5543543411), we get a palindrome (6686996866).

The spelling of 1143453455 in words is "one billion, one hundred forty-three million, four hundred fifty-three thousand, four hundred fifty-five".