13170730 has 16 divisors (see below), whose sum is σ = 23861160. Its totient is φ = 5234112.

The previous prime is 13170721. The next prime is 13170739. The reversal of 13170730 is 3707131.

It is an interprime number because it is at equal distance from previous prime (13170721) and next prime (13170739).

It can be written as a sum of positive squares in 4 ways, for example, as 11498881 + 1671849 = 3391^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (13170739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2625 + ... + 5764.

Almost surely, 2^13170730 is an apocalyptic number.

13170730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13170730 is a deficient number, since it is larger than the sum of its proper divisors (10690430).

13170730 is a wasteful number, since it uses less digits than its factorization.

13170730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 13170730 is about 3629.1500382321. The cubic root of 13170730 is about 236.1583371995.

Adding to 13170730 its reverse (3707131), we get a palindrome (16877861).

The spelling of 13170730 in words is "thirteen million, one hundred seventy thousand, seven hundred thirty".