140788138 has 8 divisors (see below), whose sum is σ = 222297120. Its totient is φ = 66689100.

The previous prime is 140788133. The next prime is 140788147. The reversal of 140788138 is 831887041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140788138.

It is not an unprimeable number, because it can be changed into a prime (140788133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1852438 + ... + 1852513.

It is an arithmetic number, because the mean of its divisors is an integer number (27787140).

Almost surely, 2^140788138 is an apocalyptic number.

140788138 is a deficient number, since it is larger than the sum of its proper divisors (81508982).

140788138 is a wasteful number, since it uses less digits than its factorization.

140788138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704972.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 140788138 is about 11865.4177339022. The cubic root of 140788138 is about 520.2219688457.

The spelling of 140788138 in words is "one hundred forty million, seven hundred eighty-eight thousand, one hundred thirty-eight".