139902 has 16 divisors (see below), whose sum is σ = 319872. Its totient is φ = 39960.

The previous prime is 139901. The next prime is 139907. The reversal of 139902 is 209931.

It is a happy number.

139902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 1 + 3⁷ + 9² + 9⁴ + 0 + 2¹⁷ .

It is a plaindrome 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 139902.

It is not an unprimeable number, because it can be changed into a prime (139901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624 + ... + 1707.

It is an arithmetic number, because the mean of its divisors is an integer number (19992).

2¹³⁹⁹⁰² is an apocalyptic number.

139902 is an abundant number, since it is smaller than the sum of its proper divisors (179970).

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

139902 is a wasteful number, since it uses less digits than its factorization.

139902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 139902 is about 374.0347577432. The cubic root of 139902 is about 51.9128223708.

It can be divided in two parts, 1 and 39902, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 139902 in words is "one hundred thirty-nine thousand, nine hundred two".