9012009143 has 4 divisors (see below), whose sum is σ = 9012206808. Its totient is φ = 9011811480.

The previous prime is 9012009137. The next prime is 9012009151. The reversal of 9012009143 is 3419002109.

It is a happy number.

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 9012009143 - 2²⁸ = 8743573687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012002143) 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, 8180 + ... + 134502.

It is an arithmetic number, because the mean of its divisors is an integer number (2253051702).

Almost surely, 2^9012009143 is an apocalyptic number.

9012009143 is a deficient number, since it is larger than the sum of its proper divisors (197665).

9012009143 is a wasteful number, since it uses less digits than its factorization.

9012009143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197664.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 9012009143 is about 94931.6024461823. The cubic root of 9012009143 is about 2081.0085979267.

The spelling of 9012009143 in words is "nine billion, twelve million, nine thousand, one hundred forty-three".