140506 has 8 divisors (see below), whose sum is σ = 212544. Its totient is φ = 69660.

The previous prime is 140477. The next prime is 140521. The reversal of 140506 is 605041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 140506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (26568).

2¹⁴⁰⁵⁰⁶ is an apocalyptic number.

140506 is a deficient number, since it is larger than the sum of its proper divisors (72038).

140506 is a wasteful number, since it uses less digits than its factorization.

140506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 140506 is about 374.8412997523. The cubic root of 140506 is about 51.9874229938.

Adding to 140506 its reverse (605041), we get a palindrome (745547).

It can be divided in two parts, 140 and 506, that added together give a palindrome (646).

The spelling of 140506 in words is "one hundred forty thousand, five hundred six".