131342135 has 4 divisors (see below), whose sum is σ = 157610568. Its totient is φ = 105073704.

The previous prime is 131342129. The next prime is 131342137. The reversal of 131342135 is 531243131.

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

It is a cyclic number.

It is not a de Polignac number, because 131342135 - 2¹⁴ = 131325751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131342135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131342137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13134209 + ... + 13134218.

It is an arithmetic number, because the mean of its divisors is an integer number (39402642).

Almost surely, 2^131342135 is an apocalyptic number.

131342135 is a deficient number, since it is larger than the sum of its proper divisors (26268433).

131342135 is an equidigital number, since it uses as much as digits as its factorization.

131342135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26268432.

The product of its digits is 1080, while the sum is 23.

The square root of 131342135 is about 11460.4596330165. The cubic root of 131342135 is about 508.3170657400.

Adding to 131342135 its reverse (531243131), we get a palindrome (662585266).

The spelling of 131342135 in words is "one hundred thirty-one million, three hundred forty-two thousand, one hundred thirty-five".