1365144 has 32 divisors (see below), whose sum is σ = 3723840. Its totient is φ = 413600.

The previous prime is 1365139. The next prime is 1365149. The reversal of 1365144 is 4415631.

It is an interprime number because it is at equal distance from previous prime (1365139) and next prime (1365149).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2322 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (116370).

2^1365144 is an apocalyptic number.

It is an amenable number.

1365144 is an abundant number, since it is smaller than the sum of its proper divisors (2358696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1365144 is a wasteful number, since it uses less digits than its factorization.

1365144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191 (or 5187 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1365144 is about 1168.3937692405. The cubic root of 1365144 is about 110.9326756746.

It can be divided in two parts, 13651 and 44, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 1365144 in words is "one million, three hundred sixty-five thousand, one hundred forty-four".