139892 has 12 divisors (see below), whose sum is σ = 251076. Its totient is φ = 68160.

The previous prime is 139891. The next prime is 139901. The reversal of 139892 is 298931.

139892 is nontrivially palindromic in base 3 and base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 7396 + 132496 = 86^2 + 364^2 .

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 139892.

It is not an unprimeable number, because it can be changed into a prime (139891) 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 3 ways as a sum of consecutive naturals, for example, 263 + ... + 590.

It is an arithmetic number, because the mean of its divisors is an integer number (20923).

2¹³⁹⁸⁹² is an apocalyptic number.

It is an amenable number.

139892 is a deficient number, since it is larger than the sum of its proper divisors (111184).

139892 is a wasteful number, since it uses less digits than its factorization.

139892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 896 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 139892 is about 374.0213897627. The cubic root of 139892 is about 51.9115854559.

It can be divided in two parts, 1 and 39892, that added together give a palindrome (39893).

The spelling of 139892 in words is "one hundred thirty-nine thousand, eight hundred ninety-two".