13530469 has 2 divisors, whose sum is σ = 13530470. Its totient is φ = 13530468.

The previous prime is 13530457. The next prime is 13530479. The reversal of 13530469 is 96403531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 1020100 = 3537^2 + 1010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13530469 is a prime.

It is a super-2 number, since 2×13530469² = 366147182719922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13530469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13530479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765234 + 6765235.

It is an arithmetic number, because the mean of its divisors is an integer number (6765235).

Almost surely, 2^13530469 is an apocalyptic number.

It is an amenable number.

13530469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530469 is an equidigital number, since it uses as much as digits as its factorization.

13530469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 13530469 is about 3678.3785830173. The cubic root of 13530469 is about 238.2891584658.

The spelling of 13530469 in words is "thirteen million, five hundred thirty thousand, four hundred sixty-nine".