1103491 has 4 divisors (see below), whose sum is σ = 1113912. Its totient is φ = 1093072.

The previous prime is 1103489. The next prime is 1103497. The reversal of 1103491 is 1943011.

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 1103491 - 2¹ = 1103489 is a prime.

It is a Duffinian number.

1103491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1103497) 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, 5050 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (278478).

2^1103491 is an apocalyptic number.

1103491 is a deficient number, since it is larger than the sum of its proper divisors (10421).

1103491 is a wasteful number, since it uses less digits than its factorization.

1103491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10420.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1103491 is about 1050.4717987647. The cubic root of 1103491 is about 103.3370989494.

The spelling of 1103491 in words is "one million, one hundred three thousand, four hundred ninety-one".