1121572 has 24 divisors (see below), whose sum is σ = 2088576. Its totient is φ = 525888.

The previous prime is 1121557. The next prime is 1121599. The reversal of 1121572 is 2751211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6633 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (87024).

2^1121572 is an apocalyptic number.

It is an amenable number.

1121572 is a deficient number, since it is larger than the sum of its proper divisors (967004).

1121572 is a wasteful number, since it uses less digits than its factorization.

1121572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its digits is 140, while the sum is 19.

The square root of 1121572 is about 1059.0429641898. The cubic root of 1121572 is about 103.8984462321.

Adding to 1121572 its reverse (2751211), we get a palindrome (3872783).

The spelling of 1121572 in words is "one million, one hundred twenty-one thousand, five hundred seventy-two".