140111138 has 8 divisors (see below), whose sum is σ = 212699088. Its totient is φ = 69211444.

The previous prime is 140111117. The next prime is 140111141. The reversal of 140111138 is 831111041.

It is a happy number.

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

It is a super-2 number, since 2×140111138² = 39262261983310088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421856 + ... + 422187.

It is an arithmetic number, because the mean of its divisors is an integer number (26587386).

Almost surely, 2^140111138 is an apocalyptic number.

140111138 is a deficient number, since it is larger than the sum of its proper divisors (72587950).

140111138 is an equidigital number, since it uses as much as digits as its factorization.

140111138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844128.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 140111138 is about 11836.8550721887. The cubic root of 140111138 is about 519.3867746547.

Adding to 140111138 its reverse (831111041), we get a palindrome (971222179).

The spelling of 140111138 in words is "one hundred forty million, one hundred eleven thousand, one hundred thirty-eight".