1115045023 has 4 divisors (see below), whose sum is σ = 1117694008. Its totient is φ = 1112396040.

The previous prime is 1115045017. The next prime is 1115045027. The reversal of 1115045023 is 3205405111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115045023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115044985 and 1115045003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115045027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323861 + ... + 1324702.

It is an arithmetic number, because the mean of its divisors is an integer number (279423502).

Almost surely, 2^1115045023 is an apocalyptic number.

1115045023 is a deficient number, since it is larger than the sum of its proper divisors (2648985).

1115045023 is an equidigital number, since it uses as much as digits as its factorization.

1115045023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648984.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1115045023 is about 33392.2898735621. The cubic root of 1115045023 is about 1036.9650867773.

The spelling of 1115045023 in words is "one billion, one hundred fifteen million, forty-five thousand, twenty-three".