139385248 has 12 divisors (see below), whose sum is σ = 274414770. Its totient is φ = 69692608.

The previous prime is 139385219. The next prime is 139385249. The reversal of 139385248 is 842583931.

It can be written as a sum of positive squares in only one way, i.e., 78357904 + 61027344 = 8852^2 + 7812^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (139385249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2177863 + ... + 2177926.

Almost surely, 2^139385248 is an apocalyptic number.

It is an amenable number.

139385248 is a deficient number, since it is larger than the sum of its proper divisors (135029522).

139385248 is an equidigital number, since it uses as much as digits as its factorization.

139385248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355799 (or 4355791 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 139385248 is about 11806.1529720735. The cubic root of 139385248 is about 518.4882721324.

The spelling of 139385248 in words is "one hundred thirty-nine million, three hundred eighty-five thousand, two hundred forty-eight".