139748 has 36 divisors (see below), whose sum is σ = 306432. Its totient is φ = 55440.

The previous prime is 139747. The next prime is 139753. The reversal of 139748 is 847931.

139748 is nontrivially palindromic in base 6.

Its product of digits (6048) is a multiple of the sum of its prime divisors (63).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139748.

It is not an unprimeable number, because it can be changed into a prime (139747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4493 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (8512).

2¹³⁹⁷⁴⁸ 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 139748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153216).

139748 is an abundant number, since it is smaller than the sum of its proper divisors (166684).

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

139748 is a wasteful number, since it uses less digits than its factorization.

139748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 63 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 139748 is about 373.8288378389. The cubic root of 139748 is about 51.8937673422.

The spelling of 139748 in words is "one hundred thirty-nine thousand, seven hundred forty-eight".