11551469 has 2 divisors, whose sum is σ = 11551470. Its totient is φ = 11551468.

The previous prime is 11551457. The next prime is 11551481. The reversal of 11551469 is 96415511.

It is a balanced prime because it is at equal distance from previous prime (11551457) and next prime (11551481).

It can be written as a sum of positive squares in only one way, i.e., 9375844 + 2175625 = 3062^2 + 1475^2 .

It is an emirp because it is prime and its reverse (96415511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11551469 - 2⁴ = 11551453 is a prime.

It is a super-2 number, since 2×11551469² = 266872872115922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11551409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775734 + 5775735.

It is an arithmetic number, because the mean of its divisors is an integer number (5775735).

Almost surely, 2^11551469 is an apocalyptic number.

It is an amenable number.

11551469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11551469 is an equidigital number, since it uses as much as digits as its factorization.

11551469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 32.

The square root of 11551469 is about 3398.7452096325. The cubic root of 11551469 is about 226.0541090062.

The spelling of 11551469 in words is "eleven million, five hundred fifty-one thousand, four hundred sixty-nine".