140706 has 12 divisors (see below), whose sum is σ = 304902. Its totient is φ = 46896.

The previous prime is 140689. The next prime is 140717. The reversal of 140706 is 607041.

It can be written as a sum of positive squares in only one way, i.e., 140625 + 81 = 375^2 + 9^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7817 = 140706 / (1 + 4 + 0 + 7 + 0 + 6).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140706.

It is an unprimeable number.

140706 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3891 + ... + 3926.

2¹⁴⁰⁷⁰⁶ is an apocalyptic number.

140706 is an abundant number, since it is smaller than the sum of its proper divisors (164196).

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

140706 is a wasteful number, since it uses less digits than its factorization.

140706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825 (or 7822 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 140706 is about 375.1079844525. The cubic root of 140706 is about 52.0120780623.

Adding to 140706 its reverse (607041), we get a palindrome (747747).

The spelling of 140706 in words is "one hundred forty thousand, seven hundred six".