1144870513 has 4 divisors (see below), whose sum is σ = 1145484288. Its totient is φ = 1144256740.

The previous prime is 1144870499. The next prime is 1144870523. The reversal of 1144870513 is 3150784411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1144870513 - 2¹⁷ = 1144739441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144870523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304081 + ... + 307822.

It is an arithmetic number, because the mean of its divisors is an integer number (286371072).

Almost surely, 2^1144870513 is an apocalyptic number.

It is an amenable number.

1144870513 is a deficient number, since it is larger than the sum of its proper divisors (613775).

1144870513 is an equidigital number, since it uses as much as digits as its factorization.

1144870513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613774.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1144870513 is about 33835.9352316439. The cubic root of 1144870513 is about 1046.1295183685.

The spelling of 1144870513 in words is "one billion, one hundred forty-four million, eight hundred seventy thousand, five hundred thirteen".