1147923 has 36 divisors (see below), whose sum is σ = 2045160. Its totient is φ = 616896.

The previous prime is 1147921. The next prime is 1147931. The reversal of 1147923 is 3297411.

It is not a de Polignac number, because 1147923 - 2¹ = 1147921 is a prime.

1147923 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1147921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8311 + ... + 8447.

It is an arithmetic number, because the mean of its divisors is an integer number (56810).

2^1147923 is an apocalyptic number.

1147923 is a deficient number, since it is larger than the sum of its proper divisors (897237).

1147923 is a wasteful number, since it uses less digits than its factorization.

1147923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 166 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1147923 is about 1071.4116855812. The cubic root of 1147923 is about 104.7058433588.

Subtracting from 1147923 its product of digits (1512), we obtain a palindrome (1146411).

The spelling of 1147923 in words is "one million, one hundred forty-seven thousand, nine hundred twenty-three".