266142753 has 10 divisors (see below), whose sum is σ = 397571394. Its totient is φ = 177428448.

The previous prime is 266142731. The next prime is 266142761. The reversal of 266142753 is 357241662.

It can be written as a sum of positive squares in only one way, i.e., 236298384 + 29844369 = 15372^2 + 5463^2 .

It is not a de Polignac number, because 266142753 - 2⁶ = 266142689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266142703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1642776 + ... + 1642937.

Almost surely, 2^266142753 is an apocalyptic number.

It is an amenable number.

266142753 is a deficient number, since it is larger than the sum of its proper divisors (131428641).

266142753 is an equidigital number, since it uses as much as digits as its factorization.

266142753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285725 (or 3285716 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 266142753 is about 16313.8822173019. The cubic root of 266142753 is about 643.2377858106.

The spelling of 266142753 in words is "two hundred sixty-six million, one hundred forty-two thousand, seven hundred fifty-three".