131268845 has 8 divisors (see below), whose sum is σ = 157585176. Its totient is φ = 104973376.

The previous prime is 131268829. The next prime is 131268857. The reversal of 131268845 is 548862131.

It can be written as a sum of positive squares in 4 ways, for example, as 8369449 + 122899396 = 2893^2 + 11086^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 131268845 - 2⁴ = 131268829 is a prime.

It is a super-3 number, since 3×131268845³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131268799 and 131268808.

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, 18179 + ... + 24351.

It is an arithmetic number, because the mean of its divisors is an integer number (19698147).

Almost surely, 2^131268845 is an apocalyptic number.

It is an amenable number.

131268845 is a deficient number, since it is larger than the sum of its proper divisors (26316331).

131268845 is an equidigital number, since it uses as much as digits as its factorization.

131268845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10431.

The product of its digits is 46080, while the sum is 38.

The square root of 131268845 is about 11457.2616710975. The cubic root of 131268845 is about 508.2224997696. Note that the first 3 decimals are identical.

The spelling of 131268845 in words is "one hundred thirty-one million, two hundred sixty-eight thousand, eight hundred forty-five".