1355616 has 60 divisors (see below), whose sum is σ = 3994452. Its totient is φ = 451008.

The previous prime is 1355609. The next prime is 1355623. The reversal of 1355616 is 6165531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1355609) and next prime (1355623).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1355616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2331 + ... + 2853.

2^1355616 is an apocalyptic number.

1355616 is a gapful number since it is divisible by the number (16) 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 1355616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1997226).

1355616 is an abundant number, since it is smaller than the sum of its proper divisors (2638836).

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

1355616 is an equidigital number, since it uses as much as digits as its factorization.

1355616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 528 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1355616 is about 1164.3092372733. The cubic root of 1355616 is about 110.6739886448.

The spelling of 1355616 in words is "one million, three hundred fifty-five thousand, six hundred sixteen".