140513644 has 24 divisors (see below), whose sum is σ = 253471680. Its totient is φ = 68121216.

The previous prime is 140513641. The next prime is 140513663. The reversal of 140513644 is 446315041.

It is not an unprimeable number, because it can be changed into a prime (140513641) 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, 17064 + ... + 23920.

It is an arithmetic number, because the mean of its divisors is an integer number (10561320).

Almost surely, 2^140513644 is an apocalyptic number.

It is an amenable number.

140513644 is a deficient number, since it is larger than the sum of its proper divisors (112958036).

140513644 is a wasteful number, since it uses less digits than its factorization.

140513644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 140513644 is about 11853.8451145609. The cubic root of 140513644 is about 519.8836574039.

Adding to 140513644 its reverse (446315041), we get a palindrome (586828685).

The spelling of 140513644 in words is "one hundred forty million, five hundred thirteen thousand, six hundred forty-four".