266147153 has 4 divisors (see below), whose sum is σ = 268588980. Its totient is φ = 263705328.

The previous prime is 266147149. The next prime is 266147243. The reversal of 266147153 is 351741662.

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 233233984 + 32913169 = 15272^2 + 5737^2 .

It is a cyclic number.

It is not a de Polignac number, because 266147153 - 2² = 266147149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (266147143) 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, 1220750 + ... + 1220967.

It is an arithmetic number, because the mean of its divisors is an integer number (67147245).

Almost surely, 2^266147153 is an apocalyptic number.

It is an amenable number.

266147153 is a deficient number, since it is larger than the sum of its proper divisors (2441827).

266147153 is a wasteful number, since it uses less digits than its factorization.

266147153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441826.

The product of its digits is 30240, while the sum is 35.

The square root of 266147153 is about 16314.0170712182. The cubic root of 266147153 is about 643.2413305632.

The spelling of 266147153 in words is "two hundred sixty-six million, one hundred forty-seven thousand, one hundred fifty-three".