131345268 has 12 divisors (see below), whose sum is σ = 306472320. Its totient is φ = 43781752.

The previous prime is 131345267. The next prime is 131345287. The reversal of 131345268 is 862543131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131345267) 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, 5472708 + ... + 5472731.

It is an arithmetic number, because the mean of its divisors is an integer number (25539360).

Almost surely, 2^131345268 is an apocalyptic number.

It is an amenable number.

131345268 is an abundant number, since it is smaller than the sum of its proper divisors (175127052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131345268 is a wasteful number, since it uses less digits than its factorization.

131345268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10945446 (or 10945444 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 131345268 is about 11460.5963195638. The cubic root of 131345268 is about 508.3211074607.

Adding to 131345268 its reverse (862543131), we get a palindrome (993888399).

The spelling of 131345268 in words is "one hundred thirty-one million, three hundred forty-five thousand, two hundred sixty-eight".