9023149 has 4 divisors (see below), whose sum is σ = 9092160. Its totient is φ = 8954140.

The previous prime is 9023137. The next prime is 9023159. The reversal of 9023149 is 9413209.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9413209 = 13 ⋅724093.

It is a cyclic number.

It is not a de Polignac number, because 9023149 - 2⁵ = 9023117 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 (9023159) 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, 34309 + ... + 34570.

It is an arithmetic number, because the mean of its divisors is an integer number (2273040).

Almost surely, 2^9023149 is an apocalyptic number.

It is an amenable number.

9023149 is a deficient number, since it is larger than the sum of its proper divisors (69011).

9023149 is a wasteful number, since it uses less digits than its factorization.

9023149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69010.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 9023149 is about 3003.8556889438. The cubic root of 9023149 is about 208.1865698435.

The spelling of 9023149 in words is "nine million, twenty-three thousand, one hundred forty-nine".