140115138 has 8 divisors (see below), whose sum is σ = 280230288. Its totient is φ = 46705044.

The previous prime is 140115097. The next prime is 140115161. The reversal of 140115138 is 831511041.

140115138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

140115138 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11676256 + ... + 11676267.

It is an arithmetic number, because the mean of its divisors is an integer number (35028786).

Almost surely, 2^140115138 is an apocalyptic number.

140115138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140115138 is a wasteful number, since it uses less digits than its factorization.

140115138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23352528.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 140115138 is about 11837.0240347817. The cubic root of 140115138 is about 519.3917172247.

Adding to 140115138 its reverse (831511041), we get a palindrome (971626179).

The spelling of 140115138 in words is "one hundred forty million, one hundred fifteen thousand, one hundred thirty-eight".