140214217 has 16 divisors (see below), whose sum is σ = 170412480. Its totient is φ = 113601600.

The previous prime is 140214211. The next prime is 140214227. The reversal of 140214217 is 712412041.

It is a cyclic number.

It is not a de Polignac number, because 140214217 - 2²⁷ = 5996489 is a prime.

It is a super-3 number, since 3×140214217³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140214211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12759 + ... + 21052.

It is an arithmetic number, because the mean of its divisors is an integer number (10650780).

Almost surely, 2^140214217 is an apocalyptic number.

It is an amenable number.

140214217 is a deficient number, since it is larger than the sum of its proper divisors (30198263).

140214217 is a wasteful number, since it uses less digits than its factorization.

140214217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33864.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 140214217 is about 11841.2084265078. The cubic root of 140214217 is about 519.5141134380.

Adding to 140214217 its reverse (712412041), we get a palindrome (852626258).

The spelling of 140214217 in words is "one hundred forty million, two hundred fourteen thousand, two hundred seventeen".