266122141 has 4 divisors (see below), whose sum is σ = 272311072. Its totient is φ = 259933212.

The previous prime is 266122139. The next prime is 266122147. The reversal of 266122141 is 141221662.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 266122141 - 2¹ = 266122139 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 (266122147) 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 3 ways as a sum of consecutive naturals, for example, 3094401 + ... + 3094486.

It is an arithmetic number, because the mean of its divisors is an integer number (68077768).

Almost surely, 2^266122141 is an apocalyptic number.

It is an amenable number.

266122141 is a deficient number, since it is larger than the sum of its proper divisors (6188931).

266122141 is an equidigital number, since it uses as much as digits as its factorization.

266122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188930.

The product of its digits is 1152, while the sum is 25.

The square root of 266122141 is about 16313.2504731583. The cubic root of 266122141 is about 643.2211797357.

The spelling of 266122141 in words is "two hundred sixty-six million, one hundred twenty-two thousand, one hundred forty-one".