253197 has 12 divisors (see below), whose sum is σ = 418080. Its totient is φ = 144648.
The previous prime is 253159. The next prime is 253229. The reversal of 253197 is 791352.
It is not a de Polignac number, because 253197 - 26 = 253133 is a prime.
It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 253197.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253197.
It is not an unprimeable number, because it can be changed into a prime (253157) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1947 + ... + 2072.
It is an arithmetic number, because the mean of its divisors is an integer number (34840).
2253197 is an apocalyptic number.
It is an amenable number.
253197 is a deficient number, since it is larger than the sum of its proper divisors (164883).
253197 is a wasteful number, since it uses less digits than its factorization.
253197 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4032 (or 4029 counting only the distinct ones).
The product of its digits is 1890, while the sum is 27.
The square root of 253197 is about 503.1868440252. The cubic root of 253197 is about 63.2634470724.
It can be divided in two parts, 2531 and 97, that added together give a triangular number (2628 = T72).
The spelling of 253197 in words is "two hundred fifty-three thousand, one hundred ninety-seven".
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