266222134 has 4 divisors (see below), whose sum is σ = 399333204. Its totient is φ = 133111066.

The previous prime is 266222123. The next prime is 266222183. The reversal of 266222134 is 431222662.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66555532 + ... + 66555535.

It is an arithmetic number, because the mean of its divisors is an integer number (99833301).

Almost surely, 2^266222134 is an apocalyptic number.

266222134 is a deficient number, since it is larger than the sum of its proper divisors (133111070).

266222134 is a wasteful number, since it uses less digits than its factorization.

266222134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133111069.

The product of its digits is 6912, while the sum is 28.

The square root of 266222134 is about 16316.3149638636. The cubic root of 266222134 is about 643.3017311713.

Adding to 266222134 its reverse (431222662), we get a palindrome (697444796).

The spelling of 266222134 in words is "two hundred sixty-six million, two hundred twenty-two thousand, one hundred thirty-four".