139233 has 4 divisors (see below), whose sum is σ = 185648. Its totient is φ = 92820.

The previous prime is 139201. The next prime is 139241. The reversal of 139233 is 332931.

139233 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332931 = 3 ⋅110977.

It is not a de Polignac number, because 139233 - 2⁵ = 139201 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139233.

It is not an unprimeable number, because it can be changed into a prime (139273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23203 + ... + 23208.

It is an arithmetic number, because the mean of its divisors is an integer number (46412).

2¹³⁹²³³ is an apocalyptic number.

It is an amenable number.

139233 is a deficient number, since it is larger than the sum of its proper divisors (46415).

139233 is an equidigital number, since it uses as much as digits as its factorization.

139233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46414.

The product of its digits is 486, while the sum is 21.

The square root of 139233 is about 373.1393841449. The cubic root of 139233 is about 51.8299424885.

The spelling of 139233 in words is "one hundred thirty-nine thousand, two hundred thirty-three".