13261330 has 8 divisors (see below), whose sum is σ = 23870412. Its totient is φ = 5304528.

The previous prime is 13261307. The next prime is 13261331. The reversal of 13261330 is 3316231.

It can be written as a sum of positive squares in 2 ways, for example, as 12383361 + 877969 = 3519^2 + 937^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13261298 and 13261307.

It is not an unprimeable number, because it can be changed into a prime (13261331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663057 + ... + 663076.

Almost surely, 2^13261330 is an apocalyptic number.

13261330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13261330 is a deficient number, since it is larger than the sum of its proper divisors (10609082).

13261330 is a wasteful number, since it uses less digits than its factorization.

13261330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326140.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 13261330 is about 3641.6109072772. The cubic root of 13261330 is about 236.6986026687.

Adding to 13261330 its reverse (3316231), we get a palindrome (16577561).

The spelling of 13261330 in words is "thirteen million, two hundred sixty-one thousand, three hundred thirty".