1147072 has 14 divisors (see below), whose sum is σ = 2276348. Its totient is φ = 573504.

The previous prime is 1147067. The next prime is 1147073. The reversal of 1147072 is 2707411.

It is not an unprimeable number, because it can be changed into a prime (1147073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8898 + ... + 9025.

2^1147072 is an apocalyptic number.

It is an amenable number.

1147072 is a deficient number, since it is larger than the sum of its proper divisors (1129276).

1147072 is an equidigital number, since it uses as much as digits as its factorization.

1147072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17935 (or 17925 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1147072 is about 1071.0144723579. The cubic root of 1147072 is about 104.6799627899.

The spelling of 1147072 in words is "one million, one hundred forty-seven thousand, seventy-two".