140665706 has 8 divisors (see below), whose sum is σ = 211312260. Its totient is φ = 70228288.

The previous prime is 140665687. The next prime is 140665751. The reversal of 140665706 is 607566041.

It can be written as a sum of positive squares in 2 ways, for example, as 114297481 + 26368225 = 10691^2 + 5135^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50591 + ... + 53298.

Almost surely, 2^140665706 is an apocalyptic number.

140665706 is a deficient number, since it is larger than the sum of its proper divisors (70646554).

140665706 is a wasteful number, since it uses less digits than its factorization.

140665706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104568.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 140665706 is about 11860.2574171052. The cubic root of 140665706 is about 520.0711268584.

The spelling of 140665706 in words is "one hundred forty million, six hundred sixty-five thousand, seven hundred six".