253453 has 6 divisors (see below), whose sum is σ = 269546.
Its totient is φ = 238272.
The previous prime is 253447. The next prime is 253469. The reversal of 253453 is 354352.
It can be written as a sum of positive squares in 3 ways, for example, as 149769 + 103684 = 387^2 + 322^2
It is not a de Polignac number, because 253453 - 213 = 245261 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (253423) 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 5 ways as a sum of consecutive naturals, for example, 150 + ... + 727.
2253453 is an apocalyptic number.
It is an amenable number.
253453 is a deficient number, since it is larger than the sum of its proper divisors (16093).
253453 is an equidigital number, since it uses as much as digits as its factorization.
253453 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 911 (or 894 counting only the distinct ones).
The product of its digits is 1800, while the sum is 22.
The square root of 253453 is about 503.4411584287.
The cubic root of 253453 is about 63.2847611576.
The spelling of 253453 in words is "two hundred fifty-three thousand, four hundred fifty-three".