131641266 has 32 divisors (see below), whose sum is σ = 278173440. Its totient is φ = 41463296.

The previous prime is 131641249. The next prime is 131641267. The reversal of 131641266 is 662146131.

It is not an unprimeable number, because it can be changed into a prime (131641267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130 + ... + 16226.

It is an arithmetic number, because the mean of its divisors is an integer number (8692920).

Almost surely, 2^131641266 is an apocalyptic number.

131641266 is an abundant number, since it is smaller than the sum of its proper divisors (146532174).

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

131641266 is a wasteful number, since it uses less digits than its factorization.

131641266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16178.

The product of its digits is 5184, while the sum is 30.

The square root of 131641266 is about 11473.5027781406. The cubic root of 131641266 is about 508.7026696044.

Adding to 131641266 its reverse (662146131), we get a palindrome (793787397).

The spelling of 131641266 in words is "one hundred thirty-one million, six hundred forty-one thousand, two hundred sixty-six".