140145214 has 16 divisors (see below), whose sum is σ = 230852736. Its totient is φ = 63279000.

The previous prime is 140145191. The next prime is 140145217. The reversal of 140145214 is 412541041.

140145214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140145217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17772 + ... + 24415.

It is an arithmetic number, because the mean of its divisors is an integer number (14428296).

Almost surely, 2^140145214 is an apocalyptic number.

140145214 is a deficient number, since it is larger than the sum of its proper divisors (90707522).

140145214 is a wasteful number, since it uses less digits than its factorization.

140145214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42351.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 140145214 is about 11838.2943872840. The cubic root of 140145214 is about 519.4288773963.

Adding to 140145214 its reverse (412541041), we get a palindrome (552686255).

The spelling of 140145214 in words is "one hundred forty million, one hundred forty-five thousand, two hundred fourteen".