239149 has 4 divisors (see below), whose sum is σ = 240160. Its totient is φ = 238140.
The previous prime is 239147. The next prime is 239167. The reversal of 239149 is 941932.
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, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 239149 - 21 = 239147 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (239147) 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, 64 + ... + 694.
It is an arithmetic number, because the mean of its divisors is an integer number (60040).
2239149 is an apocalyptic number.
It is an amenable number.
239149 is a deficient number, since it is larger than the sum of its proper divisors (1011).
239149 is an equidigital number, since it uses as much as digits as its factorization.
239149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1010.
The product of its digits is 1944, while the sum is 28.
The square root of 239149 is about 489.0286290188. The cubic root of 239149 is about 62.0711116081.
Subtracting from 239149 its sum of digits (28), we obtain a square (239121 = 4892).
The spelling of 239149 in words is "two hundred thirty-nine thousand, one hundred forty-nine".
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