232131005 has 8 divisors (see below), whose sum is σ = 294943032. Its totient is φ = 174780928.

The previous prime is 232131001. The next prime is 232131013. The reversal of 232131005 is 500131232.

It can be written as a sum of positive squares in 4 ways, for example, as 127825636 + 104305369 = 11306^2 + 10213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232131005 - 2² = 232131001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1365392 + ... + 1365561.

It is an arithmetic number, because the mean of its divisors is an integer number (36867879).

Almost surely, 2^232131005 is an apocalyptic number.

It is an amenable number.

232131005 is a deficient number, since it is larger than the sum of its proper divisors (62812027).

232131005 is a wasteful number, since it uses less digits than its factorization.

232131005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730975.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 232131005 is about 15235.8460546174. The cubic root of 232131005 is about 614.5790010943.

Adding to 232131005 its reverse (500131232), we get a palindrome (732262237).

The spelling of 232131005 in words is "two hundred thirty-two million, one hundred thirty-one thousand, five".