4155469 has 2 divisors, whose sum is σ = 4155470. Its totient is φ = 4155468.

The previous prime is 4155467. The next prime is 4155511. The reversal of 4155469 is 9645514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4153444 + 2025 = 2038^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 4155469 - 2¹ = 4155467 is a prime.

It is a super-2 number, since 2×4155469² = 34535845219922, which contains 22 as substring.

Together with 4155467, it forms a pair of twin primes.

4155469 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4155467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077734 + 2077735.

It is an arithmetic number, because the mean of its divisors is an integer number (2077735).

Almost surely, 2^4155469 is an apocalyptic number.

It is an amenable number.

4155469 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155469 is an equidigital number, since it uses as much as digits as its factorization.

4155469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 4155469 is about 2038.4967500587. The cubic root of 4155469 is about 160.7706183992.

It can be divided in two parts, 4155 and 469, that added together give a square (4624 = 68²).

The spelling of 4155469 in words is "four million, one hundred fifty-five thousand, four hundred sixty-nine".