1135616 has 22 divisors (see below), whose sum is σ = 2272170. Its totient is φ = 567296.

The previous prime is 1135613. The next prime is 1135619. The reversal of 1135616 is 6165311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1135613) and next prime (1135619).

It can be written as a sum of positive squares in only one way, i.e., 640000 + 495616 = 800^2 + 704^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1135591 and 1135600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470 + ... + 1578.

2^1135616 is an apocalyptic number.

1135616 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 1135616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136085).

1135616 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1135616 is an equidigital number, since it uses as much as digits as its factorization.

1135616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1111 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 1135616 is about 1065.6528515422. The cubic root of 1135616 is about 104.3303107477.

The spelling of 1135616 in words is "one million, one hundred thirty-five thousand, six hundred sixteen".