32131243 has 4 divisors (see below), whose sum is σ = 32250960. Its totient is φ = 32011528.

The previous prime is 32131237. The next prime is 32131247. The reversal of 32131243 is 34213123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32131243 - 2¹³ = 32123051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32131243.

It is not an unprimeable number, because it can be changed into a prime (32131247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59455 + ... + 59992.

It is an arithmetic number, because the mean of its divisors is an integer number (8062740).

Almost surely, 2^32131243 is an apocalyptic number.

32131243 is a deficient number, since it is larger than the sum of its proper divisors (119717).

32131243 is a wasteful number, since it uses less digits than its factorization.

32131243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119716.

The product of its digits is 432, while the sum is 19.

The square root of 32131243 is about 5668.4427314740. The cubic root of 32131243 is about 317.9136501963.

Adding to 32131243 its reverse (34213123), we get a palindrome (66344366).

The spelling of 32131243 in words is "thirty-two million, one hundred thirty-one thousand, two hundred forty-three".