9148421 has 8 divisors (see below), whose sum is σ = 9331200. Its totient is φ = 8967280.

The previous prime is 9148387. The next prime is 9148423. The reversal of 9148421 is 1248419.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9148421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9148423) 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, 18860 + ... + 19338.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 2^9148421 is an apocalyptic number.

It is an amenable number.

9148421 is a deficient number, since it is larger than the sum of its proper divisors (182779).

9148421 is a wasteful number, since it uses less digits than its factorization.

9148421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819.

The product of its digits is 2304, while the sum is 29.

The square root of 9148421 is about 3024.6356805407. The cubic root of 9148421 is about 209.1455911916.

The spelling of 9148421 in words is "nine million, one hundred forty-eight thousand, four hundred twenty-one".