1143331406 has 12 divisors (see below), whose sum is σ = 1994996808. Its totient is φ = 489999132.

The previous prime is 1143331393. The next prime is 1143331439. The reversal of 1143331406 is 6041333411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5833226 + ... + 5833421.

It is an arithmetic number, because the mean of its divisors is an integer number (166249734).

Almost surely, 2^1143331406 is an apocalyptic number.

1143331406 is a deficient number, since it is larger than the sum of its proper divisors (851665402).

1143331406 is a wasteful number, since it uses less digits than its factorization.

1143331406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11666663 (or 11666656 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1143331406 is about 33813.1839080557. The cubic root of 1143331406 is about 1045.6605199677.

Adding to 1143331406 its reverse (6041333411), we get a palindrome (7184664817).

The spelling of 1143331406 in words is "one billion, one hundred forty-three million, three hundred thirty-one thousand, four hundred six".