1217325245 has 8 divisors (see below), whose sum is σ = 1460984280. Its totient is φ = 973730880.

The previous prime is 1217325233. The next prime is 1217325247. The reversal of 1217325245 is 5425237121.

It can be written as a sum of positive squares in 4 ways, for example, as 264615289 + 952709956 = 16267^2 + 30866^2 .

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

It is not a de Polignac number, because 1217325245 - 2⁶ = 1217325181 is a prime.

It is a super-2 number, since 2×1217325245² = 2963761504228620050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217325247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49511 + ... + 69899.

It is an arithmetic number, because the mean of its divisors is an integer number (182623035).

Almost surely, 2^1217325245 is an apocalyptic number.

It is an amenable number.

1217325245 is a deficient number, since it is larger than the sum of its proper divisors (243659035).

1217325245 is a wasteful number, since it uses less digits than its factorization.

1217325245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32335.

The product of its digits is 16800, while the sum is 32.

The square root of 1217325245 is about 34890.1883772501. The cubic root of 1217325245 is about 1067.7482693636.

The spelling of 1217325245 in words is "one billion, two hundred seventeen million, three hundred twenty-five thousand, two hundred forty-five".