13218469 has 8 divisors (see below), whose sum is σ = 15268608. Its totient is φ = 11309760.

The previous prime is 13218463. The next prime is 13218473. The reversal of 13218469 is 96481231.

13218469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13218469 - 2⁹ = 13217957 is a prime.

It is a super-2 number, since 2×13218469² = 349455845407922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13218463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35157 + ... + 35530.

It is an arithmetic number, because the mean of its divisors is an integer number (1908576).

Almost surely, 2^13218469 is an apocalyptic number.

It is an amenable number.

13218469 is a deficient number, since it is larger than the sum of its proper divisors (2050139).

13218469 is a wasteful number, since it uses less digits than its factorization.

13218469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70715.

The product of its digits is 10368, while the sum is 34.

The square root of 13218469 is about 3635.7212489408. The cubic root of 13218469 is about 236.4433218818.

The spelling of 13218469 in words is "thirteen million, two hundred eighteen thousand, four hundred sixty-nine".