1143029999 has 4 divisors (see below), whose sum is σ = 1169612136. Its totient is φ = 1116447864.

The previous prime is 1143029971. The next prime is 1143030001. The reversal of 1143029999 is 9999203411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143029999 - 2⁸ = 1143029743 is a prime.

It is a super-2 number, since 2×1143029999² = 2613035157227880002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143029099) 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, 13291004 + ... + 13291089.

It is an arithmetic number, because the mean of its divisors is an integer number (292403034).

Almost surely, 2^1143029999 is an apocalyptic number.

1143029999 is a deficient number, since it is larger than the sum of its proper divisors (26582137).

1143029999 is an equidigital number, since it uses as much as digits as its factorization.

1143029999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26582136.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 1143029999 is about 33808.7266693083. The cubic root of 1143029999 is about 1045.5686256147.

The spelling of 1143029999 in words is "one billion, one hundred forty-three million, twenty-nine thousand, nine hundred ninety-nine".