266146 has 4 divisors (see below), whose sum is σ = 399222. Its totient is φ = 133072.

The previous prime is 266137. The next prime is 266153. The reversal of 266146 is 641662.

It is a happy number.

266146 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 198025 + 68121 = 445^2 + 261^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 266146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66535 + ... + 66538.

2²⁶⁶¹⁴⁶ is an apocalyptic number.

266146 is a deficient number, since it is larger than the sum of its proper divisors (133076).

266146 is a wasteful number, since it uses less digits than its factorization.

266146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133075.

The product of its digits is 1728, while the sum is 25.

The square root of 266146 is about 515.8933998415. The cubic root of 266146 is about 64.3240401681.

The spelling of 266146 in words is "two hundred sixty-six thousand, one hundred forty-six".