1122285547 has 4 divisors (see below), whose sum is σ = 1143460800. Its totient is φ = 1101110296.

The previous prime is 1122285539. The next prime is 1122285581. The reversal of 1122285547 is 7455822211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1122285547 - 2³ = 1122285539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122285347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10587547 + ... + 10587652.

It is an arithmetic number, because the mean of its divisors is an integer number (285865200).

Almost surely, 2^1122285547 is an apocalyptic number.

1122285547 is a deficient number, since it is larger than the sum of its proper divisors (21175253).

1122285547 is an equidigital number, since it uses as much as digits as its factorization.

1122285547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21175252.

The product of its digits is 44800, while the sum is 37.

The square root of 1122285547 is about 33500.5305480376. The cubic root of 1122285547 is about 1039.2047504767.

It can be divided in two parts, 11222 and 85547, that added together give a palindrome (96769).

The spelling of 1122285547 in words is "one billion, one hundred twenty-two million, two hundred eighty-five thousand, five hundred forty-seven".