1355503143 has 32 divisors (see below), whose sum is σ = 1981962432. Its totient is φ = 820684800.

The previous prime is 1355503099. The next prime is 1355503151. The reversal of 1355503143 is 3413055531.

It is not a de Polignac number, because 1355503143 - 2¹⁰ = 1355502119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1355503143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351503143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160773 + ... + 168993.

It is an arithmetic number, because the mean of its divisors is an integer number (61936326).

Almost surely, 2^1355503143 is an apocalyptic number.

1355503143 is a deficient number, since it is larger than the sum of its proper divisors (626459289).

1355503143 is a wasteful number, since it uses less digits than its factorization.

1355503143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1355503143 is about 36817.1582689376. The cubic root of 1355503143 is about 1106.7091730278.

Adding to 1355503143 its reverse (3413055531), we get a palindrome (4768558674).

The spelling of 1355503143 in words is "one billion, three hundred fifty-five million, five hundred three thousand, one hundred forty-three".