1131572 has 24 divisors (see below), whose sum is σ = 2182656. Its totient is φ = 510048.

The previous prime is 1131569. The next prime is 1131617. The reversal of 1131572 is 2751311.

1131572 is nontrivially palindromic in base 5.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2213 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (90944).

2^1131572 is an apocalyptic number.

It is an amenable number.

1131572 is a deficient number, since it is larger than the sum of its proper divisors (1051084).

1131572 is a wasteful number, since it uses less digits than its factorization.

1131572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its digits is 210, while the sum is 20.

The square root of 1131572 is about 1063.7537308983. The cubic root of 1131572 is about 104.2063211867.

Adding to 1131572 its reverse (2751311), we get a palindrome (3882883).

The spelling of 1131572 in words is "one million, one hundred thirty-one thousand, five hundred seventy-two".