1335564 has 36 divisors (see below), whose sum is σ = 3524976. Its totient is φ = 425568.

The previous prime is 1335563. The next prime is 1335611. The reversal of 1335564 is 4655331.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1335563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22 + ... + 1634.

It is an arithmetic number, because the mean of its divisors is an integer number (97916).

2^1335564 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 1335564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762488).

1335564 is an abundant number, since it is smaller than the sum of its proper divisors (2189412).

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

1335564 is a wasteful number, since it uses less digits than its factorization.

1335564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 1641 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 1335564 is about 1155.6660417266. Note that the first 3 decimals coincide. The cubic root of 1335564 is about 110.1255865912.

Adding to 1335564 its product of digits (5400), we get a square (1340964 = 1158²).

The spelling of 1335564 in words is "one million, three hundred thirty-five thousand, five hundred sixty-four".