139253 has 4 divisors (see below), whose sum is σ = 140448. Its totient is φ = 138060.

The previous prime is 139241. The next prime is 139267. The reversal of 139253 is 352931.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 139253 - 2¹⁴ = 122869 is a prime.

It is a d-powerful number, because it can be written as 1 + 3 + 2¹¹ + 9⁵ + 5⁷ + 3³ .

It is a Duffinian number.

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 139253.

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, 401 + ... + 662.

It is an arithmetic number, because the mean of its divisors is an integer number (35112).

2¹³⁹²⁵³ is an apocalyptic number.

It is an amenable number.

139253 is a deficient number, since it is larger than the sum of its proper divisors (1195).

139253 is a wasteful number, since it uses less digits than its factorization.

139253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194.

The product of its digits is 810, while the sum is 23.

The square root of 139253 is about 373.1661828194. The cubic root of 139253 is about 51.8324240583.

The spelling of 139253 in words is "one hundred thirty-nine thousand, two hundred fifty-three".