1355436543 has 4 divisors (see below), whose sum is σ = 1807248728. Its totient is φ = 903624360.

The previous prime is 1355436527. The next prime is 1355436553. The reversal of 1355436543 is 3456345531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1355436543 - 2⁴ = 1355436527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355436553) 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 in 3 ways as a sum of consecutive naturals, for example, 225906088 + ... + 225906093.

It is an arithmetic number, because the mean of its divisors is an integer number (451812182).

Almost surely, 2^1355436543 is an apocalyptic number.

1355436543 is a deficient number, since it is larger than the sum of its proper divisors (451812185).

1355436543 is an equidigital number, since it uses as much as digits as its factorization.

1355436543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451812184.

The product of its digits is 324000, while the sum is 39.

The square root of 1355436543 is about 36816.2537882387. The cubic root of 1355436543 is about 1106.6910473996.

The spelling of 1355436543 in words is "one billion, three hundred fifty-five million, four hundred thirty-six thousand, five hundred forty-three".