1115533 has 2 divisors, whose sum is σ = 1115534. Its totient is φ = 1115532.

The previous prime is 1115531. The next prime is 1115539. The reversal of 1115533 is 3355111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1108809 + 6724 = 1053^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115533 - 2¹ = 1115531 is a prime.

Together with 1115531, it forms a pair of twin primes.

1115533 is a lucky number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1115533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557766 + 557767.

It is an arithmetic number, because the mean of its divisors is an integer number (557767).

2^1115533 is an apocalyptic number.

It is an amenable number.

1115533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115533 is an equidigital number, since it uses as much as digits as its factorization.

1115533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225, while the sum is 19.

The square root of 1115533 is about 1056.1879567577. The cubic root of 1115533 is about 103.7116333679.

It can be divided in two parts, 111553 and 3, that added together give a square (111556 = 334²).

The spelling of 1115533 in words is "one million, one hundred fifteen thousand, five hundred thirty-three".