139378148 has 72 divisors (see below), whose sum is σ = 321753600. Its totient is φ = 52218432.

The previous prime is 139378133. The next prime is 139378177. The reversal of 139378148 is 841873931.

139378148 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×139378148³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139378099 and 139378108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46973 + ... + 49851.

It is an arithmetic number, because the mean of its divisors is an integer number (4468800).

Almost surely, 2^139378148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139378148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160876800).

139378148 is an abundant number, since it is smaller than the sum of its proper divisors (182375452).

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

139378148 is a wasteful number, since it uses less digits than its factorization.

139378148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929 (or 2920 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 139378148 is about 11805.8522775783. The cubic root of 139378148 is about 518.4794684049.

The spelling of 139378148 in words is "one hundred thirty-nine million, three hundred seventy-eight thousand, one hundred forty-eight".