1144613135 has 4 divisors (see below), whose sum is σ = 1373535768. Its totient is φ = 915690504.

The previous prime is 1144613021. The next prime is 1144613161. The reversal of 1144613135 is 5313164411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144613135 - 2²² = 1140418831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144613098 and 1144613107.

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, 114461309 + ... + 114461318.

It is an arithmetic number, because the mean of its divisors is an integer number (343383942).

Almost surely, 2^1144613135 is an apocalyptic number.

1144613135 is a deficient number, since it is larger than the sum of its proper divisors (228922633).

1144613135 is an equidigital number, since it uses as much as digits as its factorization.

1144613135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228922632.

The product of its digits is 4320, while the sum is 29.

The square root of 1144613135 is about 33832.1316945888. The cubic root of 1144613135 is about 1046.0511191378.

Adding to 1144613135 its reverse (5313164411), we get a palindrome (6457777546).

The spelling of 1144613135 in words is "one billion, one hundred forty-four million, six hundred thirteen thousand, one hundred thirty-five".