266023149 has 16 divisors (see below), whose sum is σ = 413995008. Its totient is φ = 148778352.

The previous prime is 266023139. The next prime is 266023159. The reversal of 266023149 is 941320662.

It is an interprime number because it is at equal distance from previous prime (266023139) and next prime (266023159).

It is not a de Polignac number, because 266023149 - 2⁴ = 266023133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266023139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133777 + ... + 135750.

It is an arithmetic number, because the mean of its divisors is an integer number (25874688).

Almost surely, 2^266023149 is an apocalyptic number.

It is an amenable number.

266023149 is a deficient number, since it is larger than the sum of its proper divisors (147971859).

266023149 is a wasteful number, since it uses less digits than its factorization.

266023149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269584.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 266023149 is about 16310.2160929891. The cubic root of 266023149 is about 643.1414147982.

The spelling of 266023149 in words is "two hundred sixty-six million, twenty-three thousand, one hundred forty-nine".