74249 has 4 divisors (see below), whose sum is σ = 84864. Its totient is φ = 63636.
The previous prime is 74231. The next prime is 74257. The reversal of 74249 is 94247.
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: 94247 = 79 ⋅1193.
It is a cyclic number.
It is not a de Polignac number, because 74249 - 216 = 8713 is a prime.
It is a Duffinian number.
It is a plaindrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (74209) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5297 + ... + 5310.
It is an arithmetic number, because the mean of its divisors is an integer number (21216).
274249 is an apocalyptic number.
It is an amenable number.
74249 is a deficient number, since it is larger than the sum of its proper divisors (10615).
74249 is a wasteful number, since it uses less digits than its factorization.
74249 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10614.
The product of its digits is 2016, while the sum is 26.
The square root of 74249 is about 272.4866969230. The cubic root of 74249 is about 42.0304012695.
It can be divided in two parts, 74 and 249, that added together give a palindrome (323).
The spelling of 74249 in words is "seventy-four thousand, two hundred forty-nine".
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