1143545455 has 8 divisors (see below), whose sum is σ = 1477812672. Its totient is φ = 844464288.

The previous prime is 1143545363. The next prime is 1143545489. The reversal of 1143545455 is 5545453411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143545455 - 2⁷ = 1143545327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8796439 + ... + 8796568.

It is an arithmetic number, because the mean of its divisors is an integer number (184726584).

Almost surely, 2^1143545455 is an apocalyptic number.

1143545455 is a deficient number, since it is larger than the sum of its proper divisors (334267217).

1143545455 is a wasteful number, since it uses less digits than its factorization.

1143545455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17593025.

The product of its digits is 120000, while the sum is 37.

The square root of 1143545455 is about 33816.3489306578. The cubic root of 1143545455 is about 1045.7257704050.

Adding to 1143545455 its reverse (5545453411), we get a palindrome (6688998866).

The spelling of 1143545455 in words is "one billion, one hundred forty-three million, five hundred forty-five thousand, four hundred fifty-five".