266988147 has 16 divisors (see below), whose sum is σ = 360278688. Its totient is φ = 175852800.

The previous prime is 266988131. The next prime is 266988193. The reversal of 266988147 is 741889662.

It is not a de Polignac number, because 266988147 - 2⁴ = 266988131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266988147.

It is not an unprimeable number, because it can be changed into a prime (266988107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257943 + ... + 258975.

It is an arithmetic number, because the mean of its divisors is an integer number (22517418).

Almost surely, 2^266988147 is an apocalyptic number.

266988147 is a deficient number, since it is larger than the sum of its proper divisors (93290541).

266988147 is a wasteful number, since it uses less digits than its factorization.

266988147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990.

The product of its digits is 1161216, while the sum is 51.

The square root of 266988147 is about 16339.7719384329. The cubic root of 266988147 is about 643.9181407404.

The spelling of 266988147 in words is "two hundred sixty-six million, nine hundred eighty-eight thousand, one hundred forty-seven".