266494141 has 4 divisors (see below), whose sum is σ = 267668352. Its totient is φ = 265319932.

The previous prime is 266494121. The next prime is 266494157. The reversal of 266494141 is 141494662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141494662 = 2 ⋅70747331.

It is a cyclic number.

It is not a de Polignac number, because 266494141 - 2¹⁵ = 266461373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266494141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266494121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586765 + ... + 587218.

It is an arithmetic number, because the mean of its divisors is an integer number (66917088).

Almost surely, 2^266494141 is an apocalyptic number.

It is an amenable number.

266494141 is a deficient number, since it is larger than the sum of its proper divisors (1174211).

266494141 is a wasteful number, since it uses less digits than its factorization.

266494141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174210.

The product of its digits is 41472, while the sum is 37.

The square root of 266494141 is about 16324.6482657361. The cubic root of 266494141 is about 643.5207500412.

The spelling of 266494141 in words is "two hundred sixty-six million, four hundred ninety-four thousand, one hundred forty-one".