9090143 has 4 divisors (see below), whose sum is σ = 9148200. Its totient is φ = 9032088.

The previous prime is 9090139. The next prime is 9090173. The reversal of 9090143 is 3410909.

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 9090143 - 2² = 9090139 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28793 + ... + 29106.

It is an arithmetic number, because the mean of its divisors is an integer number (2287050).

Almost surely, 2^9090143 is an apocalyptic number.

9090143 is a deficient number, since it is larger than the sum of its proper divisors (58057).

9090143 is a wasteful number, since it uses less digits than its factorization.

9090143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58056.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 9090143 is about 3014.9864012960. The cubic root of 9090143 is about 208.7005395148.

The spelling of 9090143 in words is "nine million, ninety thousand, one hundred forty-three".