139886648 has 24 divisors (see below), whose sum is σ = 288301440. Its totient is φ = 63584400.

The previous prime is 139886641. The next prime is 139886671. The reversal of 139886648 is 846688931.

It is a self number, because there is not a number n which added to its sum of digits gives 139886648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139886641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71288 + ... + 73223.

It is an arithmetic number, because the mean of its divisors is an integer number (12012560).

Almost surely, 2^139886648 is an apocalyptic number.

It is an amenable number.

139886648 is an abundant number, since it is smaller than the sum of its proper divisors (148414792).

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

139886648 is a wasteful number, since it uses less digits than its factorization.

139886648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144539 (or 144524 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 139886648 is about 11827.3685999888. The cubic root of 139886648 is about 519.1092343489.

The spelling of 139886648 in words is "one hundred thirty-nine million, eight hundred eighty-six thousand, six hundred forty-eight".