913218144 has 24 divisors (see below), whose sum is σ = 2397197880. Its totient is φ = 304406016.

The previous prime is 913218139. The next prime is 913218199. The reversal of 913218144 is 441812319.

It is a happy number.

913218144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4756249 + ... + 4756440.

It is an arithmetic number, because the mean of its divisors is an integer number (99883245).

Almost surely, 2^913218144 is an apocalyptic number.

It is an amenable number.

913218144 is an abundant number, since it is smaller than the sum of its proper divisors (1483979736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

913218144 is a wasteful number, since it uses less digits than its factorization.

913218144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9512702 (or 9512694 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 913218144 is about 30219.4994002217. The cubic root of 913218144 is about 970.1930901254.

The spelling of 913218144 in words is "nine hundred thirteen million, two hundred eighteen thousand, one hundred forty-four".