13013530 has 8 divisors (see below), whose sum is σ = 23424372. Its totient is φ = 5205408.

The previous prime is 13013527. The next prime is 13013543. The reversal of 13013530 is 3531031.

It can be written as a sum of positive squares in 2 ways, for example, as 12482089 + 531441 = 3533^2 + 729^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650667 + ... + 650686.

Almost surely, 2^13013530 is an apocalyptic number.

13013530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13013530 is a deficient number, since it is larger than the sum of its proper divisors (10410842).

13013530 is a wasteful number, since it uses less digits than its factorization.

13013530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301360.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 13013530 is about 3607.4270609397. The cubic root of 13013530 is about 235.2150137153.

Adding to 13013530 its reverse (3531031), we get a palindrome (16544561).

The spelling of 13013530 in words is "thirteen million, thirteen thousand, five hundred thirty".