13551469 has 2 divisors, whose sum is σ = 13551470. Its totient is φ = 13551468.

The previous prime is 13551467. The next prime is 13551481. The reversal of 13551469 is 96415531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 3553225 = 3162^2 + 1885^2 .

It is a cyclic number.

It is not a de Polignac number, because 13551469 - 2¹ = 13551467 is a prime.

It is a super-2 number, since 2×13551469² = 367284624115922, which contains 22 as substring.

Together with 13551467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13551467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775734 + 6775735.

It is an arithmetic number, because the mean of its divisors is an integer number (6775735).

Almost surely, 2^13551469 is an apocalyptic number.

It is an amenable number.

13551469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551469 is an equidigital number, since it uses as much as digits as its factorization.

13551469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 13551469 is about 3681.2319948626. The cubic root of 13551469 is about 238.4123738473.

The spelling of 13551469 in words is "thirteen million, five hundred fifty-one thousand, four hundred sixty-nine".