139776 has 80 divisors (see below), whose sum is σ = 458304. Its totient is φ = 36864.

The previous prime is 139759. The next prime is 139787. The reversal of 139776 is 677931.

It is a nialpdrome in base 8 and base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139776.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10746 + ... + 10758.

2¹³⁹⁷⁷⁶ is an apocalyptic number.

139776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229152).

139776 is an abundant number, since it is smaller than the sum of its proper divisors (318528).

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

139776 is an equidigital number, since it uses as much as digits as its factorization.

139776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41 (or 25 counting only the distinct ones).

The product of its digits is 7938, while the sum is 33.

The square root of 139776 is about 373.8662862575. The cubic root of 139776 is about 51.8972329337.

The spelling of 139776 in words is "one hundred thirty-nine thousand, seven hundred seventy-six".