266907145 has 12 divisors (see below), whose sum is σ = 323905284. Its totient is φ = 211120800.

The previous prime is 266907143. The next prime is 266907161. The reversal of 266907145 is 541709662.

It can be written as a sum of positive squares in 2 ways, for example, as 190798969 + 76108176 = 13813^2 + 8724^2 .

It is not a de Polignac number, because 266907145 - 2¹ = 266907143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266907098 and 266907107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266907143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366772 + ... + 367498.

It is an arithmetic number, because the mean of its divisors is an integer number (26992107).

Almost surely, 2^266907145 is an apocalyptic number.

It is an amenable number.

266907145 is a deficient number, since it is larger than the sum of its proper divisors (56998139).

266907145 is an frugal number, since it uses more digits than its factorization.

266907145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 266907145 is about 16337.2930744356. The cubic root of 266907145 is about 643.8530143374.

The spelling of 266907145 in words is "two hundred sixty-six million, nine hundred seven thousand, one hundred forty-five".