9148521 has 4 divisors (see below), whose sum is σ = 12198032. Its totient is φ = 6099012.

The previous prime is 9148501. The next prime is 9148523. The reversal of 9148521 is 1258419.

It is a happy number.

9148521 is digitally balanced in base 3, 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: 1258419 = 3 ⋅419473.

It is not a de Polignac number, because 9148521 - 2¹⁰ = 9147497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9148523) 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 3 ways as a sum of consecutive naturals, for example, 1524751 + ... + 1524756.

It is an arithmetic number, because the mean of its divisors is an integer number (3049508).

Almost surely, 2^9148521 is an apocalyptic number.

It is an amenable number.

9148521 is a deficient number, since it is larger than the sum of its proper divisors (3049511).

9148521 is a wasteful number, since it uses less digits than its factorization.

9148521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049510.

The product of its digits is 2880, while the sum is 30.

The square root of 9148521 is about 3024.6522114121. The cubic root of 9148521 is about 209.1463532351.

It can be divided in two parts, 9148 and 521, that added together give a palindrome (9669).

The spelling of 9148521 in words is "nine million, one hundred forty-eight thousand, five hundred twenty-one".