13245730 has 8 divisors (see below), whose sum is σ = 23842332. Its totient is φ = 5298288.

The previous prime is 13245709. The next prime is 13245731. The reversal of 13245730 is 3754231.

It can be written as a sum of positive squares in 2 ways, for example, as 13155129 + 90601 = 3627^2 + 301^2 .

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 = 13245695 and 13245704.

It is not an unprimeable number, because it can be changed into a prime (13245731) 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, 662277 + ... + 662296.

Almost surely, 2^13245730 is an apocalyptic number.

13245730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13245730 is a deficient number, since it is larger than the sum of its proper divisors (10596602).

13245730 is a wasteful number, since it uses less digits than its factorization.

13245730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324580.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 13245730 is about 3639.4683677702. The cubic root of 13245730 is about 236.6057525789.

Adding to 13245730 its reverse (3754231), we get a palindrome (16999961).

The spelling of 13245730 in words is "thirteen million, two hundred forty-five thousand, seven hundred thirty".