1115923 has 2 divisors, whose sum is σ = 1115924. Its totient is φ = 1115922.

The previous prime is 1115911. The next prime is 1115929. The reversal of 1115923 is 3295111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3295111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115923 is a prime.

1115923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1115894 and 1115903.

It is not a weakly prime, because it can be changed into another prime (1115929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557961 + 557962.

It is an arithmetic number, because the mean of its divisors is an integer number (557962).

2^1115923 is an apocalyptic number.

1115923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115923 is an equidigital number, since it uses as much as digits as its factorization.

1115923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 22.

The square root of 1115923 is about 1056.3725668532. The cubic root of 1115923 is about 103.7237181215.

The spelling of 1115923 in words is "one million, one hundred fifteen thousand, nine hundred twenty-three".