1385528843 has 4 divisors (see below), whose sum is σ = 1417750488. Its totient is φ = 1353307200.

The previous prime is 1385528827. The next prime is 1385528863. The reversal of 1385528843 is 3488255831.

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

It is a cyclic number.

It is not a de Polignac number, because 1385528843 - 2⁴ = 1385528827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385528803) 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, 16110758 + ... + 16110843.

It is an arithmetic number, because the mean of its divisors is an integer number (354437622).

Almost surely, 2^1385528843 is an apocalyptic number.

1385528843 is a deficient number, since it is larger than the sum of its proper divisors (32221645).

1385528843 is an equidigital number, since it uses as much as digits as its factorization.

1385528843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32221644.

The product of its digits is 921600, while the sum is 47.

The square root of 1385528843 is about 37222.6925812736. The cubic root of 1385528843 is about 1114.8211267685.

The spelling of 1385528843 in words is "one billion, three hundred eighty-five million, five hundred twenty-eight thousand, eight hundred forty-three".