1208605225 has 27 divisors (see below), whose sum is σ = 1595915247. Its totient is φ = 907783680.

The previous prime is 1208605217. The next prime is 1208605241. The reversal of 1208605225 is 5225068021.

The square root of 1208605225 is 34765.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 24970009 + 1183635216 = 4997^2 + 34404^2 .

It is not a de Polignac number, because 1208605225 - 2³ = 1208605217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2954821 + ... + 2955229.

Almost surely, 2^1208605225 is an apocalyptic number.

1208605225 is the 34765-th square number.

1208605225 is the 17383-rd centered octagonal number.

It is an amenable number.

1208605225 is a deficient number, since it is larger than the sum of its proper divisors (387310022).

1208605225 is an frugal number, since it uses more digits than its factorization.

1208605225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The cubic root of 1208605225 is about 1065.1926370956.

The spelling of 1208605225 in words is "one billion, two hundred eight million, six hundred five thousand, two hundred twenty-five".