1225836116 has 6 divisors (see below), whose sum is σ = 2145213210. Its totient is φ = 612918056.

The previous prime is 1225836103. The next prime is 1225836181. The reversal of 1225836116 is 6116385221.

It can be written as a sum of positive squares in only one way, i.e., 936972100 + 288864016 = 30610^2 + 16996^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153229511 + ... + 153229518.

It is an arithmetic number, because the mean of its divisors is an integer number (357535535).

Almost surely, 2^1225836116 is an apocalyptic number.

It is an amenable number.

1225836116 is a deficient number, since it is larger than the sum of its proper divisors (919377094).

1225836116 is a wasteful number, since it uses less digits than its factorization.

1225836116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306459033 (or 306459031 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 1225836116 is about 35011.9424768178. The cubic root of 1225836116 is about 1070.2308629290.

The spelling of 1225836116 in words is "one billion, two hundred twenty-five million, eight hundred thirty-six thousand, one hundred sixteen".