1356020455 has 4 divisors (see below), whose sum is σ = 1627224552. Its totient is φ = 1084816360.

The previous prime is 1356020447. The next prime is 1356020459. The reversal of 1356020455 is 5540206531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5540206531 = 5261 ⋅1053071.

It is not a de Polignac number, because 1356020455 - 2³ = 1356020447 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356020459) 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, 135602041 + ... + 135602050.

It is an arithmetic number, because the mean of its divisors is an integer number (406806138).

Almost surely, 2^1356020455 is an apocalyptic number.

1356020455 is a deficient number, since it is larger than the sum of its proper divisors (271204097).

1356020455 is an equidigital number, since it uses as much as digits as its factorization.

1356020455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271204096.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1356020455 is about 36824.1830187718. The cubic root of 1356020455 is about 1106.8499426805.

Adding to 1356020455 its reverse (5540206531), we get a palindrome (6896226986).

The spelling of 1356020455 in words is "one billion, three hundred fifty-six million, twenty thousand, four hundred fifty-five".