1122947 has 8 divisors (see below), whose sum is σ = 1305600. Its totient is φ = 945864.

The previous prime is 1122941. The next prime is 1122983. The reversal of 1122947 is 7492211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122947 - 2¹² = 1118851 is a prime.

It is a super-2 number, since 2×1122947² = 2522019929618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122941) 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 7 ways as a sum of consecutive naturals, for example, 947 + ... + 1772.

It is an arithmetic number, because the mean of its divisors is an integer number (163200).

2^1122947 is an apocalyptic number.

1122947 is a deficient number, since it is larger than the sum of its proper divisors (182653).

1122947 is an equidigital number, since it uses as much as digits as its factorization.

1122947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785.

The product of its digits is 1008, while the sum is 26.

The square root of 1122947 is about 1059.6919363664. The cubic root of 1122947 is about 103.9408872652.

The spelling of 1122947 in words is "one million, one hundred twenty-two thousand, nine hundred forty-seven".