13405315 has 16 divisors (see below), whose sum is σ = 20056320. Its totient is φ = 8356320.

The previous prime is 13405309. The next prime is 13405349. The reversal of 13405315 is 51350431.

It is a happy number.

13405315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13405315 - 2³ = 13405307 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17025 + ... + 17794.

It is an arithmetic number, because the mean of its divisors is an integer number (1253520).

Almost surely, 2^13405315 is an apocalyptic number.

13405315 is a deficient number, since it is larger than the sum of its proper divisors (6651005).

13405315 is a wasteful number, since it uses less digits than its factorization.

13405315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34842.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13405315 is about 3661.3269452481. The cubic root of 13405315 is about 237.5521732101.

Adding to 13405315 its reverse (51350431), we get a palindrome (64755746).

Subtracting 13405315 from its reverse (51350431), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 13405315 in words is "thirteen million, four hundred five thousand, three hundred fifteen".