9045149 has 4 divisors (see below), whose sum is σ = 9336960. Its totient is φ = 8753340.

The previous prime is 9045143. The next prime is 9045161. The reversal of 9045149 is 9415409.

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: 9415409 = 43 ⋅218963.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9045149 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 (9045143) 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, 145859 + ... + 145920.

It is an arithmetic number, because the mean of its divisors is an integer number (2334240).

Almost surely, 2^9045149 is an apocalyptic number.

It is an amenable number.

9045149 is a deficient number, since it is larger than the sum of its proper divisors (291811).

9045149 is a wasteful number, since it uses less digits than its factorization.

9045149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291810.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 9045149 is about 3007.5154197443. The cubic root of 9045149 is about 208.3556308223.

The spelling of 9045149 in words is "nine million, forty-five thousand, one hundred forty-nine".