131349269 has 4 divisors (see below), whose sum is σ = 131426796. Its totient is φ = 131271744.

The previous prime is 131349217. The next prime is 131349277. The reversal of 131349269 is 962943131.

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 83046769 + 48302500 = 9113^2 + 6950^2 .

It is a cyclic number.

It is not a de Polignac number, because 131349269 - 2¹² = 131345173 is a prime.

It is a super-2 number, since 2×131349269² = 34505260933668722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131349209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36164 + ... + 39629.

It is an arithmetic number, because the mean of its divisors is an integer number (32856699).

Almost surely, 2^131349269 is an apocalyptic number.

It is an amenable number.

131349269 is a deficient number, since it is larger than the sum of its proper divisors (77527).

131349269 is an equidigital number, since it uses as much as digits as its factorization.

131349269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77526.

The product of its digits is 34992, while the sum is 38.

The square root of 131349269 is about 11460.7708728514. The cubic root of 131349269 is about 508.3262688498.

The spelling of 131349269 in words is "one hundred thirty-one million, three hundred forty-nine thousand, two hundred sixty-nine".