1217513325 has 96 divisors (see below), whose sum is σ = 2365562880. Its totient is φ = 541094400.

The previous prime is 1217513317. The next prime is 1217513329. The reversal of 1217513325 is 5233157121.

It is not a de Polignac number, because 1217513325 - 2³ = 1217513317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1217513292 and 1217513301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217513329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3317292 + ... + 3317658.

It is an arithmetic number, because the mean of its divisors is an integer number (24641280).

Almost surely, 2^1217513325 is an apocalyptic number.

1217513325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1217513325 is a deficient number, since it is larger than the sum of its proper divisors (1148049555).

1217513325 is a wasteful number, since it uses less digits than its factorization.

1217513325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 542 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 1217513325 is about 34892.8835867717. The cubic root of 1217513325 is about 1067.8032565178.

The spelling of 1217513325 in words is "one billion, two hundred seventeen million, five hundred thirteen thousand, three hundred twenty-five".