1317106725 has 24 divisors (see below), whose sum is σ = 2375583072. Its totient is φ = 638596800.

The previous prime is 1317106669. The next prime is 1317106751. The reversal of 1317106725 is 5276017131.

It is not a de Polignac number, because 1317106725 - 2⁹ = 1317106213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 23 ways as a sum of consecutive naturals, for example, 797422 + ... + 799071.

It is an arithmetic number, because the mean of its divisors is an integer number (98982628).

Almost surely, 2^1317106725 is an apocalyptic number.

1317106725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1317106725 is a deficient number, since it is larger than the sum of its proper divisors (1058476347).

1317106725 is a wasteful number, since it uses less digits than its factorization.

1317106725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596517 (or 1596512 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 1317106725 is about 36291.9650198222. The cubic root of 1317106725 is about 1096.1592568429.

The spelling of 1317106725 in words is "one billion, three hundred seventeen million, one hundred six thousand, seven hundred twenty-five".