140109018 has 32 divisors (see below), whose sum is σ = 323429760. Its totient is φ = 39633600.

The previous prime is 140109017. The next prime is 140109037. The reversal of 140109018 is 810901041.

140109018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140109017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12273 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (10107180).

Almost surely, 2^140109018 is an apocalyptic number.

140109018 is an abundant number, since it is smaller than the sum of its proper divisors (183320742).

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

140109018 is a wasteful number, since it uses less digits than its factorization.

140109018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33142.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 140109018 is about 11836.7655210366. The cubic root of 140109018 is about 519.3841550545.

The spelling of 140109018 in words is "one hundred forty million, one hundred nine thousand, eighteen".