9148213 has 4 divisors (see below), whose sum is σ = 9395500. Its totient is φ = 8900928.

The previous prime is 9148199. The next prime is 9148241. The reversal of 9148213 is 3128419.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3301489 + 5846724 = 1817^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 9148213 - 2²¹ = 7051061 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 (9148613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123588 + ... + 123661.

It is an arithmetic number, because the mean of its divisors is an integer number (2348875).

Almost surely, 2^9148213 is an apocalyptic number.

It is an amenable number.

9148213 is a deficient number, since it is larger than the sum of its proper divisors (247287).

9148213 is a wasteful number, since it uses less digits than its factorization.

9148213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247286.

The product of its digits is 1728, while the sum is 28.

The square root of 9148213 is about 3024.6012960389. The cubic root of 9148213 is about 209.1440061235.

The spelling of 9148213 in words is "nine million, one hundred forty-eight thousand, two hundred thirteen".