1144664353 has 6 divisors (see below), whose sum is σ = 1331548386. Its totient is φ = 981140832.

The previous prime is 1144664351. The next prime is 1144664377. The reversal of 1144664353 is 3534664411.

It can be written as a sum of positive squares in only one way, i.e., 924646464 + 220017889 = 30408^2 + 14833^2 .

It is not a de Polignac number, because 1144664353 - 2¹ = 1144664351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144664351) 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 5 ways as a sum of consecutive naturals, for example, 11680200 + ... + 11680297.

It is an arithmetic number, because the mean of its divisors is an integer number (221924731).

Almost surely, 2^1144664353 is an apocalyptic number.

It is an amenable number.

1144664353 is a deficient number, since it is larger than the sum of its proper divisors (186884033).

1144664353 is an equidigital number, since it uses as much as digits as its factorization.

1144664353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23360511 (or 23360504 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 1144664353 is about 33832.8886292613. Note that the first 3 decimals coincide. The cubic root of 1144664353 is about 1046.0667214537.

The spelling of 1144664353 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred fifty-three".