1131472 has 10 divisors (see below), whose sum is σ = 2192258. Its totient is φ = 565728.

The previous prime is 1131467. The next prime is 1131479. The reversal of 1131472 is 2741311.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 163216 = 984^2 + 404^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35343 + ... + 35374.

2^1131472 is an apocalyptic number.

It is an amenable number.

1131472 is a deficient number, since it is larger than the sum of its proper divisors (1060786).

1131472 is an equidigital number, since it uses as much as digits as its factorization.

1131472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70725 (or 70719 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 1131472 is about 1063.7067264994. The cubic root of 1131472 is about 104.2032514339.

Adding to 1131472 its reverse (2741311), we get a palindrome (3872783).

The spelling of 1131472 in words is "one million, one hundred thirty-one thousand, four hundred seventy-two".