1355255449 has 4 divisors (see below), whose sum is σ = 1355342436. Its totient is φ = 1355168464.

The previous prime is 1355255441. The next prime is 1355255477. The reversal of 1355255449 is 9445525531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 587577600 + 767677849 = 24240^2 + 27707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355255449 - 2³ = 1355255441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355255441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12994 + ... + 53659.

It is an arithmetic number, because the mean of its divisors is an integer number (338835609).

Almost surely, 2^1355255449 is an apocalyptic number.

It is an amenable number.

1355255449 is a deficient number, since it is larger than the sum of its proper divisors (86987).

1355255449 is an equidigital number, since it uses as much as digits as its factorization.

1355255449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86986.

The product of its digits is 540000, while the sum is 43.

The square root of 1355255449 is about 36813.7942760591. The cubic root of 1355255449 is about 1106.6417584735.

The spelling of 1355255449 in words is "one billion, three hundred fifty-five million, two hundred fifty-five thousand, four hundred forty-nine".