140637 has 16 divisors (see below), whose sum is σ = 221312. Its totient is φ = 77760.

The previous prime is 140629. The next prime is 140639. The reversal of 140637 is 736041.

140637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140637 - 2³ = 140629 is a prime.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140637.

It is not an unprimeable number, because it can be changed into a prime (140639) 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, 687 + ... + 867.

It is an arithmetic number, because the mean of its divisors is an integer number (13832).

2¹⁴⁰⁶³⁷ is an apocalyptic number.

It is an amenable number.

140637 is a deficient number, since it is larger than the sum of its proper divisors (80675).

140637 is a wasteful number, since it uses less digits than its factorization.

140637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 140637 is about 375.0159996587. The cubic root of 140637 is about 52.0035747049.

Adding to 140637 its product of nonzero digits (504), we get a palindrome (141141).

Adding to 140637 its reverse (736041), we get a palindrome (876678).

It can be divided in two parts, 140 and 637, that added together give a palindrome (777).

The spelling of 140637 in words is "one hundred forty thousand, six hundred thirty-seven".