1115423 has 4 divisors (see below), whose sum is σ = 1125408. Its totient is φ = 1105440.

The previous prime is 1115419. The next prime is 1115447. The reversal of 1115423 is 3245111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3245111 = 31 ⋅104681.

It is a cyclic number.

It is not a de Polignac number, because 1115423 - 2² = 1115419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115453) 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, 4823 + ... + 5048.

It is an arithmetic number, because the mean of its divisors is an integer number (281352).

2^1115423 is an apocalyptic number.

1115423 is a deficient number, since it is larger than the sum of its proper divisors (9985).

1115423 is an equidigital number, since it uses as much as digits as its factorization.

1115423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984.

The product of its digits is 120, while the sum is 17.

The square root of 1115423 is about 1056.1358814092. The cubic root of 1115423 is about 103.7082243384.

It can be divided in two parts, 11 and 15423, that multiplied together give a triangular number (169653 = T₅₈₂).

The spelling of 1115423 in words is "one million, one hundred fifteen thousand, four hundred twenty-three".