1204450505 has 4 divisors (see below), whose sum is σ = 1445340612. Its totient is φ = 963560400.

The previous prime is 1204450477. The next prime is 1204450517. The reversal of 1204450505 is 5050544021.

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 676416064 + 528034441 = 26008^2 + 22979^2 .

It is not a de Polignac number, because 1204450505 - 2¹² = 1204446409 is a prime.

It is a Duffinian number.

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, 120445046 + ... + 120445055.

It is an arithmetic number, because the mean of its divisors is an integer number (361335153).

Almost surely, 2^1204450505 is an apocalyptic number.

It is an amenable number.

1204450505 is a deficient number, since it is larger than the sum of its proper divisors (240890107).

1204450505 is an equidigital number, since it uses as much as digits as its factorization.

1204450505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240890106.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1204450505 is about 34705.1942077839. The cubic root of 1204450505 is about 1063.9706615730.

Adding to 1204450505 its reverse (5050544021), we get a palindrome (6254994526).

The spelling of 1204450505 in words is "one billion, two hundred four million, four hundred fifty thousand, five hundred five".