9145923 has 8 divisors (see below), whose sum is σ = 12210000. Its totient is φ = 6089568.

The previous prime is 9145921. The next prime is 9145937. The reversal of 9145923 is 3295419.

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

It is not a de Polignac number, because 9145923 - 2¹ = 9145921 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9145921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953 + ... + 4701.

It is an arithmetic number, because the mean of its divisors is an integer number (1526250).

Almost surely, 2^9145923 is an apocalyptic number.

9145923 is a deficient number, since it is larger than the sum of its proper divisors (3064077).

9145923 is a wasteful number, since it uses less digits than its factorization.

9145923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861.

The product of its digits is 9720, while the sum is 33.

The square root of 9145923 is about 3024.2227100529. Note that the first 3 decimals coincide. The cubic root of 9145923 is about 209.1265535440.

The spelling of 9145923 in words is "nine million, one hundred forty-five thousand, nine hundred twenty-three".