131266506 has 32 divisors (see below), whose sum is σ = 300538368. Its totient is φ = 37442160.

The previous prime is 131266501. The next prime is 131266507. The reversal of 131266506 is 605662131.

It is not an unprimeable number, because it can be changed into a prime (131266501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26761 + ... + 31283.

It is an arithmetic number, because the mean of its divisors is an integer number (9391824).

Almost surely, 2^131266506 is an apocalyptic number.

131266506 is an abundant number, since it is smaller than the sum of its proper divisors (169271862).

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

131266506 is a wasteful number, since it uses less digits than its factorization.

131266506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 131266506 is about 11457.1595956415. The cubic root of 131266506 is about 508.2194811821.

The spelling of 131266506 in words is "one hundred thirty-one million, two hundred sixty-six thousand, five hundred six".