11281532 has 6 divisors (see below), whose sum is σ = 19742688. Its totient is φ = 5640764.

The previous prime is 11281531. The next prime is 11281541. The reversal of 11281532 is 23518211.

It is a happy number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11281498 and 11281507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410188 + ... + 1410195.

It is an arithmetic number, because the mean of its divisors is an integer number (3290448).

Almost surely, 2^11281532 is an apocalyptic number.

It is an amenable number.

11281532 is a deficient number, since it is larger than the sum of its proper divisors (8461156).

11281532 is a wasteful number, since it uses less digits than its factorization.

11281532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820387 (or 2820385 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 11281532 is about 3358.7991901869. The cubic root of 11281532 is about 224.2793867183.

Adding to 11281532 its reverse (23518211), we get a palindrome (34799743).

The spelling of 11281532 in words is "eleven million, two hundred eighty-one thousand, five hundred thirty-two".