140244331 has 8 divisors (see below), whose sum is σ = 142449840. Its totient is φ = 138052992.

The previous prime is 140244323. The next prime is 140244337. The reversal of 140244331 is 133442041.

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 140244331 - 2³ = 140244323 is a prime.

It is a super-2 number, since 2×140244331² = 39336944755275122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140244337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17356 + ... + 24118.

It is an arithmetic number, because the mean of its divisors is an integer number (17806230).

Almost surely, 2^140244331 is an apocalyptic number.

140244331 is a deficient number, since it is larger than the sum of its proper divisors (2205509).

140244331 is an equidigital number, since it uses as much as digits as its factorization.

140244331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140244331 is about 11842.4799345407. The cubic root of 140244331 is about 519.5513030290.

Adding to 140244331 its reverse (133442041), we get a palindrome (273686372).

The spelling of 140244331 in words is "one hundred forty million, two hundred forty-four thousand, three hundred thirty-one".