140216207 has 4 divisors (see below), whose sum is σ = 141791760. Its totient is φ = 138640656.

The previous prime is 140216203. The next prime is 140216227. The reversal of 140216207 is 702612041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140216207 - 2² = 140216203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140216201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787643 + ... + 787820.

It is an arithmetic number, because the mean of its divisors is an integer number (35447940).

Almost surely, 2^140216207 is an apocalyptic number.

140216207 is a deficient number, since it is larger than the sum of its proper divisors (1575553).

140216207 is an equidigital number, since it uses as much as digits as its factorization.

140216207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575552.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 140216207 is about 11841.2924547956. The cubic root of 140216207 is about 519.5165711731.

Adding to 140216207 its reverse (702612041), we get a palindrome (842828248).

The spelling of 140216207 in words is "one hundred forty million, two hundred sixteen thousand, two hundred seven".