140112640 has 144 divisors (see below), whose sum is σ = 365565312. Its totient is φ = 51249152.

The previous prime is 140112617. The next prime is 140112649. The reversal of 140112640 is 46211041.

It is not an unprimeable number, because it can be changed into a prime (140112649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022652 + ... + 1022788.

It is an arithmetic number, because the mean of its divisors is an integer number (2538648).

Almost surely, 2^140112640 is an apocalyptic number.

140112640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140112640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182782656).

140112640 is an abundant number, since it is smaller than the sum of its proper divisors (225452672).

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

140112640 is a wasteful number, since it uses less digits than its factorization.

140112640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 140112640 is about 11836.9185179252. The cubic root of 140112640 is about 519.3886306008.

Adding to 140112640 its reverse (46211041), we get a palindrome (186323681).

It can be divided in two parts, 1401 and 12640, that added together give a palindrome (14041).

The spelling of 140112640 in words is "one hundred forty million, one hundred twelve thousand, six hundred forty".