266746131 has 12 divisors (see below), whose sum is σ = 385479952. Its totient is φ = 177747696.

The previous prime is 266746127. The next prime is 266746141. The reversal of 266746131 is 131647662.

It is a happy number.

It is not a de Polignac number, because 266746131 - 2² = 266746127 is a prime.

It is a super-2 number, since 2×266746131² = 142306996806938322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266746121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18225 + ... + 29421.

Almost surely, 2^266746131 is an apocalyptic number.

266746131 is a deficient number, since it is larger than the sum of its proper divisors (118733821).

266746131 is a wasteful number, since it uses less digits than its factorization.

266746131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13850 (or 13847 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 266746131 is about 16332.3645256895. The cubic root of 266746131 is about 643.7235183627.

The spelling of 266746131 in words is "two hundred sixty-six million, seven hundred forty-six thousand, one hundred thirty-one".