131285653 has 2 divisors, whose sum is σ = 131285654. Its totient is φ = 131285652.

The previous prime is 131285647. The next prime is 131285701. The reversal of 131285653 is 356582131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82047364 + 49238289 = 9058^2 + 7017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131285653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131285353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65642826 + 65642827.

It is an arithmetic number, because the mean of its divisors is an integer number (65642827).

Almost surely, 2^131285653 is an apocalyptic number.

It is an amenable number.

131285653 is a deficient number, since it is larger than the sum of its proper divisors (1).

131285653 is an equidigital number, since it uses as much as digits as its factorization.

131285653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

The square root of 131285653 is about 11457.9951562217. The cubic root of 131285653 is about 508.2441902152.

It can be divided in two parts, 13128 and 5653, that added together give a palindrome (18781).

The spelling of 131285653 in words is "one hundred thirty-one million, two hundred eighty-five thousand, six hundred fifty-three".