1147442 has 8 divisors (see below), whose sum is σ = 1747056. Its totient is φ = 565092.

The previous prime is 1147441. The next prime is 1147451. The reversal of 1147442 is 2447411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1147441) 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, 4148 + ... + 4415.

It is an arithmetic number, because the mean of its divisors is an integer number (218382).

2^1147442 is an apocalyptic number.

1147442 is a deficient number, since it is larger than the sum of its proper divisors (599614).

1147442 is an equidigital number, since it uses as much as digits as its factorization.

1147442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632.

The product of its digits is 896, while the sum is 23.

The square root of 1147442 is about 1071.1871918577. The cubic root of 1147442 is about 104.6912167835.

The spelling of 1147442 in words is "one million, one hundred forty-seven thousand, four hundred forty-two".