139782 has 8 divisors (see below), whose sum is σ = 279576. Its totient is φ = 46592.

The previous prime is 139759. The next prime is 139787. The reversal of 139782 is 287931.

It is a happy number.

139782 is nontrivially palindromic in base 12.

It is a sphenic number, since it is the product of 3 distinct primes.

139782 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139787) by changing a digit.

139782 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 11643 + ... + 11654.

It is an arithmetic number, because the mean of its divisors is an integer number (34947).

2¹³⁹⁷⁸² is an apocalyptic number.

139782 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139782 is a wasteful number, since it uses less digits than its factorization.

139782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23302.

The product of its digits is 3024, while the sum is 30.

The square root of 139782 is about 373.8743104307. The cubic root of 139782 is about 51.8979755003.

The spelling of 139782 in words is "one hundred thirty-nine thousand, seven hundred eighty-two".