32131601 has 2 divisors, whose sum is σ = 32131602. Its totient is φ = 32131600.

The previous prime is 32131579. The next prime is 32131609. The reversal of 32131601 is 10613123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27552001 + 4579600 = 5249^2 + 2140^2 .

It is an emirp because it is prime and its reverse (10613123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32131601 - 2²² = 27937297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32131601.

It is not a weakly prime, because it can be changed into another prime (32131609) 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, 16065800 + 16065801.

It is an arithmetic number, because the mean of its divisors is an integer number (16065801).

Almost surely, 2^32131601 is an apocalyptic number.

It is an amenable number.

32131601 is a deficient number, since it is larger than the sum of its proper divisors (1).

32131601 is an equidigital number, since it uses as much as digits as its factorization.

32131601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 32131601 is about 5668.4743097239. The cubic root of 32131601 is about 317.9148309024.

Adding to 32131601 its reverse (10613123), we get a palindrome (42744724).

The spelling of 32131601 in words is "thirty-two million, one hundred thirty-one thousand, six hundred one".