266146039 has 2 divisors, whose sum is σ = 266146040. Its totient is φ = 266146038.

The previous prime is 266146037. The next prime is 266146061. The reversal of 266146039 is 930641662.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266146039 - 2¹ = 266146037 is a prime.

Together with 266146037, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 266145989 and 266146007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266146031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133073019 + 133073020.

It is an arithmetic number, because the mean of its divisors is an integer number (133073020).

Almost surely, 2^266146039 is an apocalyptic number.

266146039 is a deficient number, since it is larger than the sum of its proper divisors (1).

266146039 is an equidigital number, since it uses as much as digits as its factorization.

266146039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 266146039 is about 16313.9829287639. The cubic root of 266146039 is about 643.2404331000.

The spelling of 266146039 in words is "two hundred sixty-six million, one hundred forty-six thousand, thirty-nine".