9030139 has 4 divisors (see below), whose sum is σ = 9037224. Its totient is φ = 9023056.

The previous prime is 9030121. The next prime is 9030143. The reversal of 9030139 is 9310309.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9030139 - 2⁹ = 9029627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9030199) 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, 1042 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (2259306).

Almost surely, 2^9030139 is an apocalyptic number.

9030139 is a deficient number, since it is larger than the sum of its proper divisors (7085).

9030139 is a wasteful number, since it uses less digits than its factorization.

9030139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7084.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 9030139 is about 3005.0189683262. The cubic root of 9030139 is about 208.2403148834.

The spelling of 9030139 in words is "nine million, thirty thousand, one hundred thirty-nine".