153485 has 4 divisors (see below), whose sum is σ = 184188. Its totient is φ = 122784.
The previous prime is 153469. The next prime is 153487. The reversal of 153485 is 584351.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584351 = 47 ⋅12433.
It can be written as a sum of positive squares in 2 ways, for example, as 31684 + 121801 = 178^2 + 349^2 .
It is a cyclic number.
It is not a de Polignac number, because 153485 - 24 = 153469 is a prime.
It is a Duffinian number.
It is a plaindrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (153487) 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, 15344 + ... + 15353.
It is an arithmetic number, because the mean of its divisors is an integer number (46047).
2153485 is an apocalyptic number.
It is an amenable number.
153485 is a deficient number, since it is larger than the sum of its proper divisors (30703).
153485 is an equidigital number, since it uses as much as digits as its factorization.
153485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30702.
The product of its digits is 2400, while the sum is 26.
The square root of 153485 is about 391.7716171445. The cubic root of 153485 is about 53.5412672548.
The spelling of 153485 in words is "one hundred fifty-three thousand, four hundred eighty-five".
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