139236 has 24 divisors (see below), whose sum is σ = 333984. Its totient is φ = 45120.

The previous prime is 139201. The next prime is 139241. The reversal of 139236 is 632931.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139236.

It is an unprimeable number.

139236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351 + ... + 633.

It is an arithmetic number, because the mean of its divisors is an integer number (13916).

2¹³⁹²³⁶ is an apocalyptic number.

It is an amenable number.

139236 is an abundant number, since it is smaller than the sum of its proper divisors (194748).

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

139236 is a wasteful number, since it uses less digits than its factorization.

139236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 329 counting only the distinct ones).

The product of its digits is 972, while the sum is 24.

The square root of 139236 is about 373.1434040687. The cubic root of 139236 is about 51.8303147392.

It can be divided in two parts, 13923 and 6, that multiplied together give a palindrome (83538).

The spelling of 139236 in words is "one hundred thirty-nine thousand, two hundred thirty-six".