266542141 has 8 divisors (see below), whose sum is σ = 271815264. Its totient is φ = 261278160.

The previous prime is 266542109. The next prime is 266542231. The reversal of 266542141 is 141245662.

It is a happy number.

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 266542141 - 2⁵ = 266542109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266548141) 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 7 ways as a sum of consecutive naturals, for example, 104046 + ... + 106576.

It is an arithmetic number, because the mean of its divisors is an integer number (33976908).

Almost surely, 2^266542141 is an apocalyptic number.

It is an amenable number.

266542141 is a deficient number, since it is larger than the sum of its proper divisors (5273123).

266542141 is a wasteful number, since it uses less digits than its factorization.

266542141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571.

The product of its digits is 11520, while the sum is 31.

The square root of 266542141 is about 16326.1183690429. The cubic root of 266542141 is about 643.5593839633.

The spelling of 266542141 in words is "two hundred sixty-six million, five hundred forty-two thousand, one hundred forty-one".