1205132345 has 8 divisors (see below), whose sum is σ = 1466527680. Its totient is φ = 950526640.

The previous prime is 1205132339. The next prime is 1205132353. The reversal of 1205132345 is 5432315021.

It is a happy number.

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

It is not a de Polignac number, because 1205132345 - 2¹⁶ = 1205066809 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1697015 + ... + 1697724.

It is an arithmetic number, because the mean of its divisors is an integer number (183315960).

Almost surely, 2^1205132345 is an apocalyptic number.

It is an amenable number.

1205132345 is a deficient number, since it is larger than the sum of its proper divisors (261395335).

1205132345 is an equidigital number, since it uses as much as digits as its factorization.

1205132345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394815.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1205132345 is about 34715.0161313516. The cubic root of 1205132345 is about 1064.1713951308.

Adding to 1205132345 its reverse (5432315021), we get a palindrome (6637447366).

The spelling of 1205132345 in words is "one billion, two hundred five million, one hundred thirty-two thousand, three hundred forty-five".