140999142 has 8 divisors (see below), whose sum is σ = 281998296. Its totient is φ = 46999712.

The previous prime is 140999137. The next prime is 140999149. The reversal of 140999142 is 241999041.

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

140999142 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 140999142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140999149) 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, 11749923 + ... + 11749934.

It is an arithmetic number, because the mean of its divisors is an integer number (35249787).

Almost surely, 2^140999142 is an apocalyptic number.

140999142 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.

140999142 is a wasteful number, since it uses less digits than its factorization.

140999142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23499862.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 140999142 is about 11874.3059586655. The cubic root of 140999142 is about 520.4817306062.

It can be divided in two parts, 140999 and 142, that added together give a palindrome (141141).

The spelling of 140999142 in words is "one hundred forty million, nine hundred ninety-nine thousand, one hundred forty-two".