1115523 has 24 divisors (see below), whose sum is σ = 1785888. Its totient is φ = 667392.

The previous prime is 1115519. The next prime is 1115531. The reversal of 1115523 is 3255111.

1115523 is a `hidden beast` number, since 111 + 552 + 3 = 666.

It is not a de Polignac number, because 1115523 - 2² = 1115519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1115496 and 1115505.

It is not an unprimeable number, because it can be changed into a prime (1115533) 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 23 ways as a sum of consecutive naturals, for example, 3361 + ... + 3677.

It is an arithmetic number, because the mean of its divisors is an integer number (74412).

2^1115523 is an apocalyptic number.

1115523 is a deficient number, since it is larger than the sum of its proper divisors (670365).

1115523 is a wasteful number, since it uses less digits than its factorization.

1115523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 360 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 1115523 is about 1056.1832227412. The cubic root of 1115523 is about 103.7113234654.

The spelling of 1115523 in words is "one million, one hundred fifteen thousand, five hundred twenty-three".