9144913 has 2 divisors, whose sum is σ = 9144914. Its totient is φ = 9144912.

The previous prime is 9144911. The next prime is 9144917. The reversal of 9144913 is 3194419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8485569 + 659344 = 2913^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 9144913 - 2¹ = 9144911 is a prime.

Together with 9144911, it forms a pair of twin primes.

9144913 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9144911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572456 + 4572457.

It is an arithmetic number, because the mean of its divisors is an integer number (4572457).

Almost surely, 2^9144913 is an apocalyptic number.

It is an amenable number.

9144913 is a deficient number, since it is larger than the sum of its proper divisors (1).

9144913 is an equidigital number, since it uses as much as digits as its factorization.

9144913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 9144913 is about 3024.0557203861. The cubic root of 9144913 is about 209.1188551923.

The spelling of 9144913 in words is "nine million, one hundred forty-four thousand, nine hundred thirteen".