13170530 has 16 divisors (see below), whose sum is σ = 23757624. Its totient is φ = 5256960.

The previous prime is 13170527. The next prime is 13170541. The reversal of 13170530 is 3507131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11909401 + 1261129 = 3451^2 + 1123^2 .

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 4820 + ... + 7040.

Almost surely, 2^13170530 is an apocalyptic number.

13170530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13170530 is a deficient number, since it is larger than the sum of its proper divisors (10587094).

13170530 is a wasteful number, since it uses less digits than its factorization.

13170530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 13170530 is about 3629.1224834662. The cubic root of 13170530 is about 236.1571418240.

Adding to 13170530 its reverse (3507131), we get a palindrome (16677661).

The spelling of 13170530 in words is "thirteen million, one hundred seventy thousand, five hundred thirty".