1144660513 has 8 divisors (see below), whose sum is σ = 1185032448. Its totient is φ = 1104956064.

The previous prime is 1144660511. The next prime is 1144660549. The reversal of 1144660513 is 3150664411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144660513 - 2¹ = 1144660511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144660511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163381 + ... + 170242.

It is an arithmetic number, because the mean of its divisors is an integer number (148129056).

Almost surely, 2^1144660513 is an apocalyptic number.

It is an amenable number.

1144660513 is a deficient number, since it is larger than the sum of its proper divisors (40371935).

1144660513 is an equidigital number, since it uses as much as digits as its factorization.

1144660513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333743.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1144660513 is about 33832.8318796993. The cubic root of 1144660513 is about 1046.0655517074.

The spelling of 1144660513 in words is "one billion, one hundred forty-four million, six hundred sixty thousand, five hundred thirteen".