266258141 has 4 divisors (see below), whose sum is σ = 272752284. Its totient is φ = 259764000.

The previous prime is 266258137. The next prime is 266258147. The reversal of 266258141 is 141852662.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25542916 + 240715225 = 5054^2 + 15515^2 .

It is a cyclic number.

It is not a de Polignac number, because 266258141 - 2² = 266258137 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 (266258147) 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, 3247010 + ... + 3247091.

It is an arithmetic number, because the mean of its divisors is an integer number (68188071).

Almost surely, 2^266258141 is an apocalyptic number.

It is an amenable number.

266258141 is a deficient number, since it is larger than the sum of its proper divisors (6494143).

266258141 is an equidigital number, since it uses as much as digits as its factorization.

266258141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494142.

The product of its digits is 23040, while the sum is 35.

The square root of 266258141 is about 16317.4183313415. The cubic root of 266258141 is about 643.3307324178.

The spelling of 266258141 in words is "two hundred sixty-six million, two hundred fifty-eight thousand, one hundred forty-one".