9213147 has 12 divisors (see below), whose sum is σ = 13358904. Its totient is φ = 6118560.

The previous prime is 9213143. The next prime is 9213161. The reversal of 9213147 is 7413129.

9213147 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9213147 - 2² = 9213143 is a prime.

It is a d-powerful number, because it can be written as 9 + 2²³ + 1 + 3⁶ + 1 + 4⁴ + 7⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 9213147.

It is not an unprimeable number, because it can be changed into a prime (9213143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 708 + ... + 4350.

It is an arithmetic number, because the mean of its divisors is an integer number (1113242).

Almost surely, 2^9213147 is an apocalyptic number.

9213147 is a deficient number, since it is larger than the sum of its proper divisors (4145757).

9213147 is a wasteful number, since it uses less digits than its factorization.

9213147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930 (or 3927 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 9213147 is about 3035.3166226936. The cubic root of 9213147 is about 209.6376745376.

The spelling of 9213147 in words is "nine million, two hundred thirteen thousand, one hundred forty-seven".