140536 has 16 divisors (see below), whose sum is σ = 287640. Its totient is φ = 63840.

The previous prime is 140533. The next prime is 140549. The reversal of 140536 is 635041.

It is an Ulam number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711 + ... + 886.

2¹⁴⁰⁵³⁶ is an apocalyptic number.

It is an amenable number.

140536 is an abundant number, since it is smaller than the sum of its proper divisors (147104).

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

140536 is a wasteful number, since it uses less digits than its factorization.

140536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 140536 is about 374.8813145517. The cubic root of 140536 is about 51.9911227449.

Adding to 140536 its reverse (635041), we get a palindrome (775577).

It can be divided in two parts, 1405 and 36, that added together give a palindrome (1441).

The spelling of 140536 in words is "one hundred forty thousand, five hundred thirty-six".