148289 has 4 divisors (see below), whose sum is σ = 149124. Its totient is φ = 147456.
The previous prime is 148279. The next prime is 148301. The reversal of 148289 is 982841.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 146689 + 1600 = 383^2 + 40^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-148289 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148289.
It is not an unprimeable number, because it can be changed into a prime (148229) 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, 32 + ... + 545.
It is an arithmetic number, because the mean of its divisors is an integer number (37281).
2148289 is an apocalyptic number.
It is an amenable number.
148289 is a deficient number, since it is larger than the sum of its proper divisors (835).
148289 is an equidigital number, since it uses as much as digits as its factorization.
148289 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 834.
The product of its digits is 4608, while the sum is 32.
The square root of 148289 is about 385.0831079131. The cubic root of 148289 is about 52.9301322157.
The spelling of 148289 in words is "one hundred forty-eight thousand, two hundred eighty-nine".
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