131305335 has 16 divisors (see below), whose sum is σ = 240101376. Its totient is φ = 60025248.

The previous prime is 131305309. The next prime is 131305337. The reversal of 131305335 is 533503131.

It is not a de Polignac number, because 131305335 - 2⁵ = 131305303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131305337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625159 + ... + 625368.

It is an arithmetic number, because the mean of its divisors is an integer number (15006336).

Almost surely, 2^131305335 is an apocalyptic number.

131305335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131305335 is a deficient number, since it is larger than the sum of its proper divisors (108796041).

131305335 is a wasteful number, since it uses less digits than its factorization.

131305335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250542.

The product of its (nonzero) digits is 2025, while the sum is 24.

The square root of 131305335 is about 11458.8540002917. The cubic root of 131305335 is about 508.2695871571.

Adding to 131305335 its reverse (533503131), we get a palindrome (664808466).

The spelling of 131305335 in words is "one hundred thirty-one million, three hundred five thousand, three hundred thirty-five".