1121084547 has 32 divisors (see below), whose sum is σ = 1675019520. Its totient is φ = 661200000.

The previous prime is 1121084543. The next prime is 1121084599. The reversal of 1121084547 is 7454801211.

It is not a de Polignac number, because 1121084547 - 2² = 1121084543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1121084543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193797 + ... + 199497.

It is an arithmetic number, because the mean of its divisors is an integer number (52344360).

Almost surely, 2^1121084547 is an apocalyptic number.

1121084547 is a deficient number, since it is larger than the sum of its proper divisors (553934973).

1121084547 is a wasteful number, since it uses less digits than its factorization.

1121084547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 1121084547 is about 33482.6006606416. The cubic root of 1121084547 is about 1038.8339207947.

Adding to 1121084547 its reverse (7454801211), we get a palindrome (8575885758).

The spelling of 1121084547 in words is "one billion, one hundred twenty-one million, eighty-four thousand, five hundred forty-seven".