1144513 has 4 divisors (see below), whose sum is σ = 1148868. Its totient is φ = 1140160.

The previous prime is 1144511. The next prime is 1144519. The reversal of 1144513 is 3154411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3154411 = 13 ⋅242647.

It can be written as a sum of positive squares in 2 ways, for example, as 418609 + 725904 = 647^2 + 852^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144513 - 2¹ = 1144511 is a prime.

It is a Duffinian number.

1144513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1144511) 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, 1756 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (287217).

2^1144513 is an apocalyptic number.

It is an amenable number.

1144513 is a deficient number, since it is larger than the sum of its proper divisors (4355).

1144513 is an equidigital number, since it uses as much as digits as its factorization.

1144513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354.

The product of its digits is 240, while the sum is 19.

The square root of 1144513 is about 1069.8191435939. The cubic root of 1144513 is about 104.6020614105.

Adding to 1144513 its reverse (3154411), we get a palindrome (4298924).

It can be divided in two parts, 11445 and 13, that multiplied together give a triangular number (148785 = T₅₄₅).

The spelling of 1144513 in words is "one million, one hundred forty-four thousand, five hundred thirteen".