1225061313 has 16 divisors (see below), whose sum is σ = 1876147200. Its totient is φ = 696514896.

The previous prime is 1225061311. The next prime is 1225061323. The reversal of 1225061313 is 3131605221.

It is not a de Polignac number, because 1225061313 - 2¹ = 1225061311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225061311) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 142395 + ... + 150752.

It is an arithmetic number, because the mean of its divisors is an integer number (117259200).

Almost surely, 2^1225061313 is an apocalyptic number.

It is an amenable number.

1225061313 is a deficient number, since it is larger than the sum of its proper divisors (651085887).

1225061313 is a wasteful number, since it uses less digits than its factorization.

1225061313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293356.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1225061313 is about 35000.8758890403. The cubic root of 1225061313 is about 1070.0053317346.

Adding to 1225061313 its reverse (3131605221), we get a palindrome (4356666534).

The spelling of 1225061313 in words is "one billion, two hundred twenty-five million, sixty-one thousand, three hundred thirteen".