1155472 has 20 divisors (see below), whose sum is σ = 2255436. Its totient is φ = 573440.

The previous prime is 1155461. The next prime is 1155499. The reversal of 1155472 is 2745511.

It can be written as a sum of positive squares in 2 ways, for example, as 1008016 + 147456 = 1004^2 + 384^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3972 + ... + 4252.

2^1155472 is an apocalyptic number.

It is an amenable number.

1155472 is a deficient number, since it is larger than the sum of its proper divisors (1099964).

1155472 is a wasteful number, since it uses less digits than its factorization.

1155472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 540 counting only the distinct ones).

The product of its digits is 1400, while the sum is 25.

The square root of 1155472 is about 1074.9288348537. The cubic root of 1155472 is about 104.9348651209.

The spelling of 1155472 in words is "one million, one hundred fifty-five thousand, four hundred seventy-two".