1205404652245 has 8 divisors (see below), whose sum is σ = 1461397805784. Its totient is φ = 954382239744.

The previous prime is 1205404652219. The next prime is 1205404652369. The reversal of 1205404652245 is 5422564045021.

It can be written as a sum of positive squares in 4 ways, for example, as 101485476 + 1205303166769 = 10074^2 + 1097863^2 .

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 1205404652245 - 2⁷ = 1205404652117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205404652198 and 1205404652207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242684724 + ... + 1242685693.

It is an arithmetic number, because the mean of its divisors is an integer number (182674725723).

Almost surely, 2^{1205404652245} is an apocalyptic number.

It is an amenable number.

1205404652245 is a deficient number, since it is larger than the sum of its proper divisors (255993153539).

1205404652245 is an equidigital number, since it uses as much as digits as its factorization.

1205404652245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485370519.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 1205404652245 its reverse (5422564045021), we get a palindrome (6627968697266).

The spelling of 1205404652245 in words is "one trillion, two hundred five billion, four hundred four million, six hundred fifty-two thousand, two hundred forty-five".