1440135 has 12 divisors (see below), whose sum is σ = 2496312. Its totient is φ = 768048.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440135 is 5310441.

It is a happy number.

It is not a de Polignac number, because 1440135 - 2⁴ = 1440119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15957 + ... + 16046.

It is an arithmetic number, because the mean of its divisors is an integer number (208026).

2^1440135 is an apocalyptic number.

1440135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1440135 is a deficient number, since it is larger than the sum of its proper divisors (1056177).

1440135 is a wasteful number, since it uses less digits than its factorization.

1440135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32014 (or 32011 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1440135 is about 1200.0562486817. The cubic root of 1440135 is about 112.9278522406.

Adding to 1440135 its reverse (5310441), we get a palindrome (6750576).

The spelling of 1440135 in words is "one million, four hundred forty thousand, one hundred thirty-five".