1225117318 has 8 divisors (see below), whose sum is σ = 1838136600. Its totient is φ = 612405120.

The previous prime is 1225117301. The next prime is 1225117337. The reversal of 1225117318 is 8137115221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1225117318.

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 3 ways as a sum of consecutive naturals, for example, 66523 + ... + 82918.

It is an arithmetic number, because the mean of its divisors is an integer number (229767075).

Almost surely, 2^1225117318 is an apocalyptic number.

1225117318 is a deficient number, since it is larger than the sum of its proper divisors (613019282).

1225117318 is a wasteful number, since it uses less digits than its factorization.

1225117318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153542.

The product of its digits is 3360, while the sum is 31.

The square root of 1225117318 is about 35001.6759313036. The cubic root of 1225117318 is about 1070.0216369689.

The spelling of 1225117318 in words is "one billion, two hundred twenty-five million, one hundred seventeen thousand, three hundred eighteen".