1385512223 has 4 divisors (see below), whose sum is σ = 1467012960. Its totient is φ = 1304011488.

The previous prime is 1385512213. The next prime is 1385512231. The reversal of 1385512223 is 3222155831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222155831 = 19 ⋅169587149.

It is a cyclic number.

It is not a de Polignac number, because 1385512223 - 2¹⁶ = 1385446687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1385512223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385512213) 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, 40750343 + ... + 40750376.

It is an arithmetic number, because the mean of its divisors is an integer number (366753240).

Almost surely, 2^1385512223 is an apocalyptic number.

1385512223 is a deficient number, since it is larger than the sum of its proper divisors (81500737).

1385512223 is an equidigital number, since it uses as much as digits as its factorization.

1385512223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81500736.

The product of its digits is 14400, while the sum is 32.

The square root of 1385512223 is about 37222.4693296939. The cubic root of 1385512223 is about 1114.8166691682.

The spelling of 1385512223 in words is "one billion, three hundred eighty-five million, five hundred twelve thousand, two hundred twenty-three".