1002253205 has 8 divisors (see below), whose sum is σ = 1203795000. Its totient is φ = 801075136.

The previous prime is 1002253181. The next prime is 1002253223. The reversal of 1002253205 is 5023522001.

It can be written as a sum of positive squares in 4 ways, for example, as 23251684 + 979001521 = 4822^2 + 31289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002253205 - 2¹⁴ = 1002236821 is a prime.

It is a super-2 number, since 2×1002253205² = 2009022973865544050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84830 + ... + 95919.

It is an arithmetic number, because the mean of its divisors is an integer number (150474375).

Almost surely, 2^1002253205 is an apocalyptic number.

It is an amenable number.

1002253205 is a deficient number, since it is larger than the sum of its proper divisors (201541795).

1002253205 is a wasteful number, since it uses less digits than its factorization.

1002253205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181863.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1002253205 is about 31658.3828550986. The cubic root of 1002253205 is about 1000.7505049348.

Adding to 1002253205 its reverse (5023522001), we get a palindrome (6025775206).

The spelling of 1002253205 in words is "one billion, two million, two hundred fifty-three thousand, two hundred five".