139707040 has 48 divisors (see below), whose sum is σ = 360067680. Its totient is φ = 50801920.

The previous prime is 139707031. The next prime is 139707041. The reversal of 139707040 is 40707931.

139707040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139706993 and 139707011.

It is not an unprimeable number, because it can be changed into a prime (139707041) 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, 37930 + ... + 41449.

It is an arithmetic number, because the mean of its divisors is an integer number (7501410).

Almost surely, 2^139707040 is an apocalyptic number.

139707040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139707040 is an abundant number, since it is smaller than the sum of its proper divisors (220360640).

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

139707040 is a wasteful number, since it uses less digits than its factorization.

139707040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79405 (or 79397 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 139707040 is about 11819.7732634768. The cubic root of 139707040 is about 518.8869684290.

The spelling of 139707040 in words is "one hundred thirty-nine million, seven hundred seven thousand, forty".