1230552305 has 4 divisors (see below), whose sum is σ = 1476662772. Its totient is φ = 984441840.

The previous prime is 1230552277. The next prime is 1230552307. The reversal of 1230552305 is 5032550321.

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 934402624 + 296149681 = 30568^2 + 17209^2 .

It is not a de Polignac number, because 1230552305 - 2¹⁰ = 1230551281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230552307) 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, 123055226 + ... + 123055235.

It is an arithmetic number, because the mean of its divisors is an integer number (369165693).

Almost surely, 2^1230552305 is an apocalyptic number.

It is an amenable number.

1230552305 is a deficient number, since it is larger than the sum of its proper divisors (246110467).

1230552305 is an equidigital number, since it uses as much as digits as its factorization.

1230552305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246110466.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1230552305 is about 35079.2289681515. The cubic root of 1230552305 is about 1071.6016148994.

The spelling of 1230552305 in words is "one billion, two hundred thirty million, five hundred fifty-two thousand, three hundred five".