1225061716 has 24 divisors (see below), whose sum is σ = 2191318920. Its totient is φ = 599044992.

The previous prime is 1225061707. The next prime is 1225061723. The reversal of 1225061716 is 6171605221.

It can be written as a sum of positive squares in 4 ways, for example, as 404010000 + 821051716 = 20100^2 + 28654^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58090 + ... + 76318.

It is an arithmetic number, because the mean of its divisors is an integer number (91304955).

Almost surely, 2^1225061716 is an apocalyptic number.

It is an amenable number.

1225061716 is a deficient number, since it is larger than the sum of its proper divisors (966257204).

1225061716 is a wasteful number, since it uses less digits than its factorization.

1225061716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18603 (or 18601 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1225061716 is about 35000.8816460386. The cubic root of 1225061716 is about 1070.0054490653.

Adding to 1225061716 its reverse (6171605221), we get a palindrome (7396666937).

The spelling of 1225061716 in words is "one billion, two hundred twenty-five million, sixty-one thousand, seven hundred sixteen".