140561214 has 8 divisors (see below), whose sum is σ = 281122440. Its totient is φ = 46853736.

The previous prime is 140561209. The next prime is 140561233. The reversal of 140561214 is 412165041.

It is a happy number.

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

140561214 is an admirable number.

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, 11713429 + ... + 11713440.

It is an arithmetic number, because the mean of its divisors is an integer number (35140305).

Almost surely, 2^140561214 is an apocalyptic number.

140561214 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.

140561214 is a wasteful number, since it uses less digits than its factorization.

140561214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23426874.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 140561214 is about 11855.8514666809. The cubic root of 140561214 is about 519.9423185526.

The spelling of 140561214 in words is "one hundred forty million, five hundred sixty-one thousand, two hundred fourteen".