1252452205 has 4 divisors (see below), whose sum is σ = 1502942652. Its totient is φ = 1001961760.

The previous prime is 1252452199. The next prime is 1252452209. The reversal of 1252452205 is 5022542521.

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 214710409 + 1037741796 = 14653^2 + 32214^2 .

It is not a de Polignac number, because 1252452205 - 2³ = 1252452197 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 (1252452209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125245216 + ... + 125245225.

It is an arithmetic number, because the mean of its divisors is an integer number (375735663).

Almost surely, 2^1252452205 is an apocalyptic number.

It is an amenable number.

1252452205 is a deficient number, since it is larger than the sum of its proper divisors (250490447).

1252452205 is an equidigital number, since it uses as much as digits as its factorization.

1252452205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250490446.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1252452205 is about 35390.0014834699. The cubic root of 1252452205 is about 1077.9213002876.

Adding to 1252452205 its reverse (5022542521), we get a palindrome (6274994726).

The spelling of 1252452205 in words is "one billion, two hundred fifty-two million, four hundred fifty-two thousand, two hundred five".