1144135 has 8 divisors (see below), whose sum is σ = 1432800. Its totient is φ = 875424.

The previous prime is 1144103. The next prime is 1144139. The reversal of 1144135 is 5314411.

1144135 = T₆₇₄ + T₆₇₅ + ... + T₆₇₈.

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 1144135 - 2⁵ = 1144103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144139) 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 7 ways as a sum of consecutive naturals, for example, 4860 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (179100).

2^1144135 is an apocalyptic number.

1144135 is a deficient number, since it is larger than the sum of its proper divisors (288665).

1144135 is an equidigital number, since it uses as much as digits as its factorization.

1144135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9977.

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

The square root of 1144135 is about 1069.6424636298. The cubic root of 1144135 is about 104.5905444500.

Adding to 1144135 its reverse (5314411), we get a palindrome (6458546).

It can be divided in two parts, 11441 and 35, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 1144135 in words is "one million, one hundred forty-four thousand, one hundred thirty-five".