139789140 has 24 divisors (see below), whose sum is σ = 391409760. Its totient is φ = 37277088.

The previous prime is 139789127. The next prime is 139789141. The reversal of 139789140 is 41987931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 139789092 and 139789101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139789141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164850 + ... + 1164969.

It is an arithmetic number, because the mean of its divisors is an integer number (16308740).

Almost surely, 2^139789140 is an apocalyptic number.

139789140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139789140 is an abundant number, since it is smaller than the sum of its proper divisors (251620620).

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

139789140 is a wasteful number, since it uses less digits than its factorization.

139789140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329831 (or 2329829 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 139789140 is about 11823.2457472557. The cubic root of 139789140 is about 518.9885912677.

It can be divided in two parts, 1397891 and 40, that added together give a palindrome (1397931).

The spelling of 139789140 in words is "one hundred thirty-nine million, seven hundred eighty-nine thousand, one hundred forty".