140310138 has 16 divisors (see below), whose sum is σ = 281526336. Its totient is φ = 46619040.

The previous prime is 140310113. The next prime is 140310151. The reversal of 140310138 is 831013041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35731 + ... + 39462.

It is an arithmetic number, because the mean of its divisors is an integer number (17595396).

Almost surely, 2^140310138 is an apocalyptic number.

140310138 is an abundant number, since it is smaller than the sum of its proper divisors (141216198).

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

140310138 is a wasteful number, since it uses less digits than its factorization.

140310138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75509.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 140310138 is about 11845.2580385570. The cubic root of 140310138 is about 519.6325535296.

Adding to 140310138 its reverse (831013041), we get a palindrome (971323179).

The spelling of 140310138 in words is "one hundred forty million, three hundred ten thousand, one hundred thirty-eight".