1253205 has 16 divisors (see below), whose sum is σ = 2228160. Its totient is φ = 668304.

The previous prime is 1253171. The next prime is 1253249. The reversal of 1253205 is 5023521.

It is a happy number.

It is not a de Polignac number, because 1253205 - 2¹¹ = 1251157 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4507 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (139260).

2^1253205 is an apocalyptic number.

1253205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253205 is a deficient number, since it is larger than the sum of its proper divisors (974955).

1253205 is an equidigital number, since it uses as much as digits as its factorization.

1253205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297 (or 9291 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1253205 is about 1119.4663907416. The cubic root of 1253205 is about 107.8137221033.

Adding to 1253205 its reverse (5023521), we get a palindrome (6276726).

The spelling of 1253205 in words is "one million, two hundred fifty-three thousand, two hundred five".