32740231 has 2 divisors, whose sum is σ = 32740232. Its totient is φ = 32740230.

The previous prime is 32740229. The next prime is 32740277. The reversal of 32740231 is 13204723.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32740231 - 2¹ = 32740229 is a prime.

It is a super-2 number, since 2×32740231² = 2143845451866722, which contains 22 as substring.

Together with 32740229, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32740291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16370115 + 16370116.

It is an arithmetic number, because the mean of its divisors is an integer number (16370116).

Almost surely, 2^32740231 is an apocalyptic number.

32740231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32740231 is an equidigital number, since it uses as much as digits as its factorization.

32740231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 32740231 is about 5721.9079859781. The cubic root of 32740231 is about 319.9095805732.

Adding to 32740231 its reverse (13204723), we get a palindrome (45944954).

The spelling of 32740231 in words is "thirty-two million, seven hundred forty thousand, two hundred thirty-one".