131205359 has 2 divisors, whose sum is σ = 131205360. Its totient is φ = 131205358.

The previous prime is 131205323. The next prime is 131205391. The reversal of 131205359 is 953502131.

It is a strong prime.

It is an emirp because it is prime and its reverse (953502131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131205359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131202359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65602679 + 65602680.

It is an arithmetic number, because the mean of its divisors is an integer number (65602680).

Almost surely, 2^131205359 is an apocalyptic number.

131205359 is a deficient number, since it is larger than the sum of its proper divisors (1).

131205359 is an equidigital number, since it uses as much as digits as its factorization.

131205359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 131205359 is about 11454.4907787295. The cubic root of 131205359 is about 508.1405554298.

The spelling of 131205359 in words is "one hundred thirty-one million, two hundred five thousand, three hundred fifty-nine".