140214144 has 64 divisors (see below), whose sum is σ = 425658240. Its totient is φ = 40060416.

The previous prime is 140214143. The next prime is 140214161. The reversal of 140214144 is 441412041.

140214144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 140214144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140214143) 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, 23394 + ... + 28769.

It is an arithmetic number, because the mean of its divisors is an integer number (6650910).

Almost surely, 2^140214144 is an apocalyptic number.

140214144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140214144 is an abundant number, since it is smaller than the sum of its proper divisors (285444096).

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

140214144 is an equidigital number, since it uses as much as digits as its factorization.

140214144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52187 (or 52175 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 140214144 is about 11841.2053440518. The cubic root of 140214144 is about 519.5140232795.

Adding to 140214144 its reverse (441412041), we get a palindrome (581626185).

The spelling of 140214144 in words is "one hundred forty million, two hundred fourteen thousand, one hundred forty-four".