1113539 has 8 divisors (see below), whose sum is σ = 1279488. Its totient is φ = 949320.

The previous prime is 1113527. The next prime is 1113557. The reversal of 1113539 is 9353111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (159936).

2^1113539 is an apocalyptic number.

1113539 is a deficient number, since it is larger than the sum of its proper divisors (165949).

1113539 is an equidigital number, since it uses as much as digits as its factorization.

1113539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 405, while the sum is 23.

The square root of 1113539 is about 1055.2435737781. The cubic root of 1113539 is about 103.6498021364.

The spelling of 1113539 in words is "one million, one hundred thirteen thousand, five hundred thirty-nine".