135250 has 16 divisors (see below), whose sum is σ = 253656. Its totient is φ = 54000.
The previous prime is 135241. The next prime is 135257. The reversal of 135250 is 52531.
It can be written as a sum of positive squares in 4 ways, for example, as 33489 + 101761 = 183^2 + 319^2 .
It is not an unprimeable number, because it can be changed into a prime (135257) 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 7 ways as a sum of consecutive naturals, for example, 21 + ... + 520.
2135250 is an apocalyptic number.
135250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
135250 is a deficient number, since it is larger than the sum of its proper divisors (118406).
135250 is an equidigital number, since it uses as much as digits as its factorization.
135250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 558 (or 548 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 16.
The square root of 135250 is about 367.7635109687. The cubic root of 135250 is about 51.3309250946.
Adding to 135250 its reverse (52531), we get a palindrome (187781).
It can be divided in two parts, 1352 and 50, that multiplied together give a square (67600 = 2602).
The spelling of 135250 in words is "one hundred thirty-five thousand, two hundred fifty".
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