9042549 has 8 divisors (see below), whose sum is σ = 12129600. Its totient is φ = 5991936.

The previous prime is 9042547. The next prime is 9042557. The reversal of 9042549 is 9452409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9042549 - 2¹ = 9042547 is a prime.

9042549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9042547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8524 + ... + 9525.

It is an arithmetic number, because the mean of its divisors is an integer number (1516200).

Almost surely, 2^9042549 is an apocalyptic number.

It is an amenable number.

9042549 is a deficient number, since it is larger than the sum of its proper divisors (3087051).

9042549 is a wasteful number, since it uses less digits than its factorization.

9042549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18219.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 9042549 is about 3007.0831381922. The cubic root of 9042549 is about 208.3356651828.

Adding to 9042549 its product of nonzero digits (12960), we get a palindrome (9055509).

It can be divided in two parts, 9042 and 549, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 9042549 in words is "nine million, forty-two thousand, five hundred forty-nine".