1355455469 has 2 divisors, whose sum is σ = 1355455470. Its totient is φ = 1355455468.

The previous prime is 1355455463. The next prime is 1355455477. The reversal of 1355455469 is 9645545531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 994645444 + 360810025 = 31538^2 + 18995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355455469 is a prime.

It is a super-2 number, since 2×1355455469² = 3674519056884019922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355455463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677727734 + 677727735.

It is an arithmetic number, because the mean of its divisors is an integer number (677727735).

Almost surely, 2^1355455469 is an apocalyptic number.

It is an amenable number.

1355455469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355455469 is an equidigital number, since it uses as much as digits as its factorization.

1355455469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620000, while the sum is 47.

The square root of 1355455469 is about 36816.5108205544. The cubic root of 1355455469 is about 1106.6961982954.

The spelling of 1355455469 in words is "one billion, three hundred fifty-five million, four hundred fifty-five thousand, four hundred sixty-nine".