266872153 has 2 divisors, whose sum is σ = 266872154. Its totient is φ = 266872152.

The previous prime is 266872129. The next prime is 266872169. The reversal of 266872153 is 351278662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254817369 + 12054784 = 15963^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 266872153 - 2⁵ = 266872121 is a prime.

It is not a weakly prime, because it can be changed into another prime (266875153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133436076 + 133436077.

It is an arithmetic number, because the mean of its divisors is an integer number (133436077).

Almost surely, 2^266872153 is an apocalyptic number.

It is an amenable number.

266872153 is a deficient number, since it is larger than the sum of its proper divisors (1).

266872153 is an equidigital number, since it uses as much as digits as its factorization.

266872153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 266872153 is about 16336.2221152872. Note that the first 3 decimals coincide. The cubic root of 266872153 is about 643.8248763504.

The spelling of 266872153 in words is "two hundred sixty-six million, eight hundred seventy-two thousand, one hundred fifty-three".