140605266 has 32 divisors (see below), whose sum is σ = 298349568. Its totient is φ = 44023040.

The previous prime is 140605259. The next prime is 140605271. The reversal of 140605266 is 662506041.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65551 + ... + 67661.

It is an arithmetic number, because the mean of its divisors is an integer number (9323424).

Almost surely, 2^140605266 is an apocalyptic number.

140605266 is an abundant number, since it is smaller than the sum of its proper divisors (157744302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140605266 is a wasteful number, since it uses less digits than its factorization.

140605266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140605266 is about 11857.7091379406. The cubic root of 140605266 is about 519.9966296626.

The spelling of 140605266 in words is "one hundred forty million, six hundred five thousand, two hundred sixty-six".