1122347947 has 4 divisors (see below), whose sum is σ = 1282683376. Its totient is φ = 962012520.

The previous prime is 1122347929. The next prime is 1122347953. The reversal of 1122347947 is 7497432211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1122347947 is a prime.

It is a super-4 number, since 4×1122347947⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122347957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80167704 + ... + 80167717.

It is an arithmetic number, because the mean of its divisors is an integer number (320670844).

Almost surely, 2^1122347947 is an apocalyptic number.

1122347947 is a deficient number, since it is larger than the sum of its proper divisors (160335429).

1122347947 is an equidigital number, since it uses as much as digits as its factorization.

1122347947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160335428.

The product of its digits is 84672, while the sum is 40.

The square root of 1122347947 is about 33501.4618636262. The cubic root of 1122347947 is about 1039.2240103329.

The spelling of 1122347947 in words is "one billion, one hundred twenty-two million, three hundred forty-seven thousand, nine hundred forty-seven".