140217712 has 20 divisors (see below), whose sum is σ = 280436416. Its totient is φ = 67847040.

The previous prime is 140217647. The next prime is 140217817. The reversal of 140217712 is 217712041.

140217712 is an admirable number.

It is a super-2 number, since 2×140217712² = 39322013517029888, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 140853 + ... + 141844.

Almost surely, 2^140217712 is an apocalyptic number.

It is an amenable number.

140217712 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140217712 is a wasteful number, since it uses less digits than its factorization.

140217712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282736 (or 282730 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 140217712 is about 11841.3560034314. The cubic root of 140217712 is about 519.5184298970.

Adding to 140217712 its reverse (217712041), we get a palindrome (357929753).

The spelling of 140217712 in words is "one hundred forty million, two hundred seventeen thousand, seven hundred twelve".