140331 has 8 divisors (see below), whose sum is σ = 193680. Its totient is φ = 90272.

The previous prime is 140321. The next prime is 140333. The reversal of 140331 is 133041.

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

It is a cyclic number.

It is not a de Polignac number, because 140331 - 2¹¹ = 138283 is a prime.

It is a super-2 number, since 2×140331² = 39385579122, which contains 22 as substring.

140331 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140331.

It is not an unprimeable number, because it can be changed into a prime (140333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 720 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (24210).

2¹⁴⁰³³¹ is an apocalyptic number.

140331 is a deficient number, since it is larger than the sum of its proper divisors (53349).

140331 is a wasteful number, since it uses less digits than its factorization.

140331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 140331 is about 374.6077949002. The cubic root of 140331 is about 51.9658306093.

Adding to 140331 its reverse (133041), we get a palindrome (273372).

The spelling of 140331 in words is "one hundred forty thousand, three hundred thirty-one".