139396 has 6 divisors (see below), whose sum is σ = 243950. Its totient is φ = 69696.

The previous prime is 139393. The next prime is 139397. The reversal of 139396 is 693931.

It can be written as a sum of positive squares in only one way, i.e., 81796 + 57600 = 286^2 + 240^2 .

It is not an unprimeable number, because it can be changed into a prime (139393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17421 + ... + 17428.

2¹³⁹³⁹⁶ is an apocalyptic number.

It is an amenable number.

139396 is a deficient number, since it is larger than the sum of its proper divisors (104554).

139396 is a wasteful number, since it uses less digits than its factorization.

139396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34853 (or 34851 counting only the distinct ones).

The product of its digits is 4374, while the sum is 31.

The square root of 139396 is about 373.3577372976. The cubic root of 139396 is about 51.8501603631.

It can be divided in two parts, 139 and 396, that added together give a palindrome (535).

The spelling of 139396 in words is "one hundred thirty-nine thousand, three hundred ninety-six".