1159923 has 4 divisors (see below), whose sum is σ = 1546568. Its totient is φ = 773280.

The previous prime is 1159919. The next prime is 1159967. The reversal of 1159923 is 3299511.

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

It is not a de Polignac number, because 1159923 - 2² = 1159919 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1159973) 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, 193318 + ... + 193323.

It is an arithmetic number, because the mean of its divisors is an integer number (386642).

2^1159923 is an apocalyptic number.

1159923 is a deficient number, since it is larger than the sum of its proper divisors (386645).

1159923 is an equidigital number, since it uses as much as digits as its factorization.

1159923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386644.

The product of its digits is 2430, while the sum is 30.

The square root of 1159923 is about 1076.9972144811. The cubic root of 1159923 is about 105.0694325348.

The spelling of 1159923 in words is "one million, one hundred fifty-nine thousand, nine hundred twenty-three".