140799831 has 8 divisors (see below), whose sum is σ = 198776304. Its totient is φ = 88344960.

The previous prime is 140799811. The next prime is 140799833. The reversal of 140799831 is 138997041.

It is a happy number.

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

It is not a de Polignac number, because 140799831 - 2¹⁸ = 140537687 is a prime.

It is a super-2 number, since 2×140799831² = 39649184819257122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140799833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380340 + ... + 1380441.

It is an arithmetic number, because the mean of its divisors is an integer number (24847038).

Almost surely, 2^140799831 is an apocalyptic number.

140799831 is a deficient number, since it is larger than the sum of its proper divisors (57976473).

140799831 is a wasteful number, since it uses less digits than its factorization.

140799831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760801.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 140799831 is about 11865.9104581149. The cubic root of 140799831 is about 520.2363705966.

The spelling of 140799831 in words is "one hundred forty million, seven hundred ninety-nine thousand, eight hundred thirty-one".