1147973 has 4 divisors (see below), whose sum is σ = 1161888. Its totient is φ = 1134060.

The previous prime is 1147969. The next prime is 1147981. The reversal of 1147973 is 3797411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3797411 = 163 ⋅23297.

It is a cyclic number.

It is not a de Polignac number, because 1147973 - 2² = 1147969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147903) 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 3 ways as a sum of consecutive naturals, for example, 6833 + ... + 6998.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

2^1147973 is an apocalyptic number.

It is an amenable number.

1147973 is a deficient number, since it is larger than the sum of its proper divisors (13915).

1147973 is an equidigital number, since it uses as much as digits as its factorization.

1147973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13914.

The product of its digits is 5292, while the sum is 32.

The square root of 1147973 is about 1071.4350190282. The cubic root of 1147973 is about 104.7073635584.

The spelling of 1147973 in words is "one million, one hundred forty-seven thousand, nine hundred seventy-three".