131355269 has 4 divisors (see below), whose sum is σ = 131378220. Its totient is φ = 131332320.

The previous prime is 131355241. The next prime is 131355281. The reversal of 131355269 is 962553131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 56325025 + 75030244 = 7505^2 + 8662^2 .

It is a cyclic number.

It is not a de Polignac number, because 131355269 - 2¹² = 131351173 is a prime.

It is a super-2 number, since 2×131355269² = 34508413388124722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131355869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4889 + ... + 16929.

It is an arithmetic number, because the mean of its divisors is an integer number (32844555).

Almost surely, 2^131355269 is an apocalyptic number.

It is an amenable number.

131355269 is a deficient number, since it is larger than the sum of its proper divisors (22951).

131355269 is a wasteful number, since it uses less digits than its factorization.

131355269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22950.

The product of its digits is 24300, while the sum is 35.

The square root of 131355269 is about 11461.0326323591. The cubic root of 131355269 is about 508.3340088020.

The spelling of 131355269 in words is "one hundred thirty-one million, three hundred fifty-five thousand, two hundred sixty-nine".