140144312 has 64 divisors (see below), whose sum is σ = 334368000. Its totient is φ = 54589920.

The previous prime is 140144309. The next prime is 140144317. The reversal of 140144312 is 213441041.

140144312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×140144312⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140144317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27863 + ... + 32505.

It is an arithmetic number, because the mean of its divisors is an integer number (5224500).

Almost surely, 2^140144312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140144312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167184000).

140144312 is an abundant number, since it is smaller than the sum of its proper divisors (194223688).

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

140144312 is a wasteful number, since it uses less digits than its factorization.

140144312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4663 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 140144312 is about 11838.2562905185. The cubic root of 140144312 is about 519.4277630144.

Adding to 140144312 its reverse (213441041), we get a palindrome (353585353).

The spelling of 140144312 in words is "one hundred forty million, one hundred forty-four thousand, three hundred twelve".