140442411 has 4 divisors (see below), whose sum is σ = 187256552. Its totient is φ = 93628272.

The previous prime is 140442409. The next prime is 140442413. The reversal of 140442411 is 114244041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (140442409) and next prime (140442413).

It is not a de Polignac number, because 140442411 - 2¹ = 140442409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140442413) 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 3 ways as a sum of consecutive naturals, for example, 23407066 + ... + 23407071.

It is an arithmetic number, because the mean of its divisors is an integer number (46814138).

Almost surely, 2^140442411 is an apocalyptic number.

140442411 is a deficient number, since it is larger than the sum of its proper divisors (46814141).

140442411 is an equidigital number, since it uses as much as digits as its factorization.

140442411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46814140.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 140442411 is about 11850.8400968033. The cubic root of 140442411 is about 519.7957913643.

Adding to 140442411 its reverse (114244041), we get a palindrome (254686452).

The spelling of 140442411 in words is "one hundred forty million, four hundred forty-two thousand, four hundred eleven".