9042155 has 4 divisors (see below), whose sum is σ = 10850592. Its totient is φ = 7233720.

The previous prime is 9042127. The next prime is 9042179. The reversal of 9042155 is 5512409.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9042155 - 2⁸ = 9041899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904211 + ... + 904220.

It is an arithmetic number, because the mean of its divisors is an integer number (2712648).

Almost surely, 2^9042155 is an apocalyptic number.

9042155 is a deficient number, since it is larger than the sum of its proper divisors (1808437).

9042155 is a wasteful number, since it uses less digits than its factorization.

9042155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808436.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 9042155 is about 3007.0176254887. The cubic root of 9042155 is about 208.3326392866.

The spelling of 9042155 in words is "nine million, forty-two thousand, one hundred fifty-five".