1143214475 has 12 divisors (see below), whose sum is σ = 1526631456. Its totient is φ = 844219680.

The previous prime is 1143214459. The next prime is 1143214519. The reversal of 1143214475 is 5744123411.

It is not a de Polignac number, because 1143214475 - 2⁴ = 1143214459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1758467 + ... + 1759116.

It is an arithmetic number, because the mean of its divisors is an integer number (127219288).

Almost surely, 2^1143214475 is an apocalyptic number.

1143214475 is a deficient number, since it is larger than the sum of its proper divisors (383416981).

1143214475 is a wasteful number, since it uses less digits than its factorization.

1143214475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517606 (or 3517601 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 1143214475 is about 33811.4547897602. The cubic root of 1143214475 is about 1045.6248714240.

Adding to 1143214475 its reverse (5744123411), we get a palindrome (6887337886).

The spelling of 1143214475 in words is "one billion, one hundred forty-three million, two hundred fourteen thousand, four hundred seventy-five".