131340205 has 4 divisors (see below), whose sum is σ = 157608252. Its totient is φ = 105072160.

The previous prime is 131340169. The next prime is 131340247. The reversal of 131340205 is 502043131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37908649 + 93431556 = 6157^2 + 9666^2 .

It is not a de Polignac number, because 131340205 - 2¹⁹ = 130815917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13134016 + ... + 13134025.

It is an arithmetic number, because the mean of its divisors is an integer number (39402063).

Almost surely, 2^131340205 is an apocalyptic number.

It is an amenable number.

131340205 is a deficient number, since it is larger than the sum of its proper divisors (26268047).

131340205 is an equidigital number, since it uses as much as digits as its factorization.

131340205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26268046.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131340205 is about 11460.3754301506. The cubic root of 131340205 is about 508.3145759151.

Adding to 131340205 its reverse (502043131), we get a palindrome (633383336).

The spelling of 131340205 in words is "one hundred thirty-one million, three hundred forty thousand, two hundred five".