140215744 has 28 divisors (see below), whose sum is σ = 292887400. Its totient is φ = 66417408.

The previous prime is 140215741. The next prime is 140215753. The reversal of 140215744 is 447512041.

140215744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140215741) 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 3 ways as a sum of consecutive naturals, for example, 56439 + ... + 58870.

Almost surely, 2^140215744 is an apocalyptic number.

It is an amenable number.

140215744 is an abundant number, since it is smaller than the sum of its proper divisors (152671656).

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

140215744 is a wasteful number, since it uses less digits than its factorization.

140215744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115340 (or 115330 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 140215744 is about 11841.2729045487. The cubic root of 140215744 is about 519.5159993504.

Adding to 140215744 its reverse (447512041), we get a palindrome (587727785).

The spelling of 140215744 in words is "one hundred forty million, two hundred fifteen thousand, seven hundred forty-four".