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140142 = 2323357

140142 has 8 divisors (see below), whose sum is σ = 280296. Its totient is φ = 46712.

The previous prime is 140123. The next prime is 140143. The reversal of 140142 is 241041.

140142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

140142 is an admirable number.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

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 140142.

It is not an unprimeable number, because it can be changed into a prime (140143) by changing a digit.

140142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11673 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (35037).

2140142 is an apocalyptic number.

140142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140142 is a wasteful number, since it uses less digits than its factorization.

140142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23362.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 140142 is about 374.3554460670. The cubic root of 140142 is about 51.9424906617.

Adding to 140142 its reverse (241041), we get a palindrome (381183).

It can be divided in two parts, 140 and 142, that added together give a palindrome (282).

The spelling of 140142 in words is "one hundred forty thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 23357 46714 70071 140142