1103523 has 4 divisors (see below), whose sum is σ = 1471368. Its totient is φ = 735680.

The previous prime is 1103519. The next prime is 1103533. The reversal of 1103523 is 3253011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1103523 - 2² = 1103519 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1103533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183918 + ... + 183923.

It is an arithmetic number, because the mean of its divisors is an integer number (367842).

2^1103523 is an apocalyptic number.

1103523 is a deficient number, since it is larger than the sum of its proper divisors (367845).

1103523 is an equidigital number, since it uses as much as digits as its factorization.

1103523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367844.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1103523 is about 1050.4870299057. The cubic root of 1103523 is about 103.3380978263.

Adding to 1103523 its reverse (3253011), we get a palindrome (4356534).

The spelling of 1103523 in words is "one million, one hundred three thousand, five hundred twenty-three".