140745 has 16 divisors (see below), whose sum is σ = 245952. Its totient is φ = 68160.

The previous prime is 140741. The next prime is 140759. The reversal of 140745 is 547041.

It is not a de Polignac number, because 140745 - 2² = 140741 is a prime.

140745 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140741) 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, 262 + ... + 591.

It is an arithmetic number, because the mean of its divisors is an integer number (15372).

2¹⁴⁰⁷⁴⁵ is an apocalyptic number.

140745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140745 is a deficient number, since it is larger than the sum of its proper divisors (105207).

140745 is a wasteful number, since it uses less digits than its factorization.

140745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 140745 is about 375.1599658812. The cubic root of 140745 is about 52.0168830781.

Subtracting from 140745 its product of nonzero digits (560), we obtain a triangular number (140185 = T₅₂₉).

Adding to 140745 its reverse (547041), we get a palindrome (687786).

The spelling of 140745 in words is "one hundred forty thousand, seven hundred forty-five".