1143022655 has 4 divisors (see below), whose sum is σ = 1371627192. Its totient is φ = 914418120.

The previous prime is 1143022609. The next prime is 1143022703. The reversal of 1143022655 is 5562203411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5562203411 = 317 ⋅17546383.

It is not a de Polignac number, because 1143022655 - 2¹² = 1143018559 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 3 ways as a sum of consecutive naturals, for example, 114302261 + ... + 114302270.

It is an arithmetic number, because the mean of its divisors is an integer number (342906798).

Almost surely, 2^1143022655 is an apocalyptic number.

1143022655 is a deficient number, since it is larger than the sum of its proper divisors (228604537).

1143022655 is an equidigital number, since it uses as much as digits as its factorization.

1143022655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228604536.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1143022655 is about 33808.6180581224. The cubic root of 1143022655 is about 1045.5663863406.

The spelling of 1143022655 in words is "one billion, one hundred forty-three million, twenty-two thousand, six hundred fifty-five".