1165648 has 40 divisors (see below), whose sum is σ = 2544480. Its totient is φ = 512640.

The previous prime is 1165643. The next prime is 1165667. The reversal of 1165648 is 8465611.

It is a super-3 number, since 3×1165648³ = 4751421114709733376, which contains 333 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165643) 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, 6423 + ... + 6601.

It is an arithmetic number, because the mean of its divisors is an integer number (63612).

2^1165648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272240).

1165648 is an abundant number, since it is smaller than the sum of its proper divisors (1378832).

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

1165648 is a wasteful number, since it uses less digits than its factorization.

1165648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 229 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 1165648 is about 1079.6517957193. The cubic root of 1165648 is about 105.2420116821.

It can be divided in two parts, 1 and 165648, that added together give a square (165649 = 407²).

The spelling of 1165648 in words is "one million, one hundred sixty-five thousand, six hundred forty-eight".