32231145 has 16 divisors (see below), whose sum is σ = 51647040. Its totient is φ = 17164224.

The previous prime is 32231137. The next prime is 32231183. The reversal of 32231145 is 54113223.

It is not a de Polignac number, because 32231145 - 2³ = 32231137 is a prime.

It is a super-2 number, since 2×32231145² = 2077693416022050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13071 + ... + 15339.

It is an arithmetic number, because the mean of its divisors is an integer number (3227940).

Almost surely, 2^32231145 is an apocalyptic number.

It is an amenable number.

32231145 is a deficient number, since it is larger than the sum of its proper divisors (19415895).

32231145 is a wasteful number, since it uses less digits than its factorization.

32231145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224.

The product of its digits is 720, while the sum is 21.

The square root of 32231145 is about 5677.2480129020. The cubic root of 32231145 is about 318.2427934966.

Adding to 32231145 its reverse (54113223), we get a palindrome (86344368).

The spelling of 32231145 in words is "thirty-two million, two hundred thirty-one thousand, one hundred forty-five".