1265544 has 112 divisors (see below), whose sum is σ = 4197120. Its totient is φ = 349920.

The previous prime is 1265527. The next prime is 1265549. The reversal of 1265544 is 4455621.

1265544 is a `hidden beast` number, since 1 + 2 + 655 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265549) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 40809 + ... + 40839.

2^1265544 is an apocalyptic number.

1265544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2098560).

1265544 is an abundant number, since it is smaller than the sum of its proper divisors (2931576).

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

1265544 is an equidigital number, since it uses as much as digits as its factorization.

1265544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 43 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1265544 is about 1124.9639994240. The cubic root of 1265544 is about 108.1664101245.

It can be divided in two parts, 12 and 65544, that added together give a palindrome (65556).

The spelling of 1265544 in words is "one million, two hundred sixty-five thousand, five hundred forty-four".