1204664345 has 4 divisors (see below), whose sum is σ = 1445597220. Its totient is φ = 963731472.

The previous prime is 1204664311. The next prime is 1204664449. The reversal of 1204664345 is 5434664021.

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 464661136 + 740003209 = 21556^2 + 27203^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204664345 - 2⁶ = 1204664281 is a prime.

It is a super-2 number, since 2×1204664345² = 2902432368228558050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120466430 + ... + 120466439.

It is an arithmetic number, because the mean of its divisors is an integer number (361399305).

Almost surely, 2^1204664345 is an apocalyptic number.

It is an amenable number.

1204664345 is a deficient number, since it is larger than the sum of its proper divisors (240932875).

1204664345 is an equidigital number, since it uses as much as digits as its factorization.

1204664345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240932874.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 1204664345 is about 34708.2748779020. The cubic root of 1204664345 is about 1064.0336241777.

The spelling of 1204664345 in words is "one billion, two hundred four million, six hundred sixty-four thousand, three hundred forty-five".