139616 has 12 divisors (see below), whose sum is σ = 274932. Its totient is φ = 69792.

The previous prime is 139609. The next prime is 139619. The reversal of 139616 is 616931.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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 139616.

It is not an unprimeable number, because it can be changed into a prime (139619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2150 + ... + 2213.

It is an arithmetic number, because the mean of its divisors is an integer number (22911).

2¹³⁹⁶¹⁶ is an apocalyptic number.

139616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139616 is a deficient number, since it is larger than the sum of its proper divisors (135316).

139616 is an equidigital number, since it uses as much as digits as its factorization.

139616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4365 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 139616 is about 373.6522447410. The cubic root of 139616 is about 51.8774233154.

The spelling of 139616 in words is "one hundred thirty-nine thousand, six hundred sixteen".