139717248 has 192 divisors, whose sum is σ = 425429760. Its totient is φ = 40550400.

The previous prime is 139717199. The next prime is 139717297. The reversal of 139717248 is 842717931.

It is an interprime number because it is at equal distance from previous prime (139717199) and next prime (139717297).

It is a tau number, because it is divible by the number of its divisors (192).

Its product of digits (84672) is a multiple of the sum of its prime divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1440336 + ... + 1440432.

It is an arithmetic number, because the mean of its divisors is an integer number (2215780).

Almost surely, 2^139717248 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 139717248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212714880).

139717248 is an abundant number, since it is smaller than the sum of its proper divisors (285712512).

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

139717248 is a wasteful number, since it uses less digits than its factorization.

139717248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 144 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 139717248 is about 11820.2050743631. The cubic root of 139717248 is about 518.8996059911.

The spelling of 139717248 in words is "one hundred thirty-nine million, seven hundred seventeen thousand, two hundred forty-eight".