140039154 has 48 divisors (see below), whose sum is σ = 313140672. Its totient is φ = 45196704.

The previous prime is 140039153. The next prime is 140039161. The reversal of 140039154 is 451930041.

140039154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140039154² = 39221929306071432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140039153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188107 + ... + 188849.

It is an arithmetic number, because the mean of its divisors is an integer number (6523764).

Almost surely, 2^140039154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140039154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156570336).

140039154 is an abundant number, since it is smaller than the sum of its proper divisors (173101518).

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

140039154 is a wasteful number, since it uses less digits than its factorization.

140039154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 140039154 is about 11833.8140090167. The cubic root of 140039154 is about 519.2978120813.

Adding to 140039154 its reverse (451930041), we get a palindrome (591969195).

The spelling of 140039154 in words is "one hundred forty million, thirty-nine thousand, one hundred fifty-four".