9155489 has 4 divisors (see below), whose sum is σ = 10463424. Its totient is φ = 7847556.

The previous prime is 9155477. The next prime is 9155527. The reversal of 9155489 is 9845519.

It is a happy number.

9155489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 9845519 = 1229 ⋅8011.

It is a cyclic number.

It is not a de Polignac number, because 9155489 - 2⁸ = 9155233 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9155189) 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, 653957 + ... + 653970.

It is an arithmetic number, because the mean of its divisors is an integer number (2615856).

Almost surely, 2^9155489 is an apocalyptic number.

It is an amenable number.

9155489 is a deficient number, since it is larger than the sum of its proper divisors (1307935).

9155489 is a wasteful number, since it uses less digits than its factorization.

9155489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307934.

The product of its digits is 64800, while the sum is 41.

The square root of 9155489 is about 3025.8038601337. The cubic root of 9155489 is about 209.1994387539.

The spelling of 9155489 in words is "nine million, one hundred fifty-five thousand, four hundred eighty-nine".