140342331 has 8 divisors (see below), whose sum is σ = 187223040. Its totient is φ = 93511592.

The previous prime is 140342309. The next prime is 140342333. The reversal of 140342331 is 133243041.

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 140342331 - 2⁵ = 140342299 is a prime.

It is a super-2 number, since 2×140342331² = 39391939741027122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140342298 and 140342307.

It is not an unprimeable number, because it can be changed into a prime (140342333) 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, 5355 + ... + 17588.

It is an arithmetic number, because the mean of its divisors is an integer number (23402880).

Almost surely, 2^140342331 is an apocalyptic number.

140342331 is a deficient number, since it is larger than the sum of its proper divisors (46880709).

140342331 is a wasteful number, since it uses less digits than its factorization.

140342331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24985.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 140342331 is about 11846.6168588336. The cubic root of 140342331 is about 519.6722922869.

Adding to 140342331 its reverse (133243041), we get a palindrome (273585372).

It can be divided in two parts, 1403 and 42331, that added together give a palindrome (43734).

The spelling of 140342331 in words is "one hundred forty million, three hundred forty-two thousand, three hundred thirty-one".