131205335 has 8 divisors (see below), whose sum is σ = 157510656. Its totient is φ = 104921440.

The previous prime is 131205323. The next prime is 131205359. The reversal of 131205335 is 533502131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131205335 - 2¹⁸ = 130943191 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 131205335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15530 + ... + 22440.

It is an arithmetic number, because the mean of its divisors is an integer number (19688832).

Almost surely, 2^131205335 is an apocalyptic number.

131205335 is a deficient number, since it is larger than the sum of its proper divisors (26305321).

131205335 is an equidigital number, since it uses as much as digits as its factorization.

131205335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10713.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 131205335 is about 11454.4897311054. The cubic root of 131205335 is about 508.1405244469.

Adding to 131205335 its reverse (533502131), we get a palindrome (664707466).

The spelling of 131205335 in words is "one hundred thirty-one million, two hundred five thousand, three hundred thirty-five".