445153253 has 4 divisors (see below), whose sum is σ = 457184460.
Its totient is φ = 433122048.
The previous prime is 445153213. The next prime is 445153297. The reversal of 445153253 is 352351544.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 300744964 + 144408289 = 17342^2 + 12017^2
It is a cyclic number.
It is not a de Polignac number, because 445153253 - 224 = 428376037 is a prime.
It is a super-2 number, since 2×4451532532 = 396322837312964018, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (445153213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6015548 + ... + 6015621.
It is an arithmetic number, because the mean of its divisors is an integer number (114296115).
Almost surely, 2445153253 is an apocalyptic number.
It is an amenable number.
445153253 is a deficient number, since it is larger than the sum of its proper divisors (12031207).
445153253 is a wasteful number, since it uses less digits than its factorization.
445153253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12031206.
The product of its digits is 36000, while the sum is 32.
The square root of 445153253 is about 21098.6552415077.
The cubic root of 445153253 is about 763.5483045159.
The spelling of 445153253 in words is "four hundred forty-five million, one hundred fifty-three thousand, two hundred fifty-three".