9120145 has 8 divisors (see below), whose sum is σ = 11047104. Its totient is φ = 7227504.

The previous prime is 9120127. The next prime is 9120149. The reversal of 9120145 is 5410219.

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

It is a cyclic number.

It is not a de Polignac number, because 9120145 - 2⁷ = 9120017 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 (9120149) 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, 7989 + ... + 9058.

It is an arithmetic number, because the mean of its divisors is an integer number (1380888).

Almost surely, 2^9120145 is an apocalyptic number.

It is an amenable number.

9120145 is a deficient number, since it is larger than the sum of its proper divisors (1926959).

9120145 is a wasteful number, since it uses less digits than its factorization.

9120145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17159.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 9120145 is about 3019.9577811618. The cubic root of 9120145 is about 208.9298926201.

The spelling of 9120145 in words is "nine million, one hundred twenty thousand, one hundred forty-five".