1385556463 has 4 divisors (see below), whose sum is σ = 1385954608. Its totient is φ = 1385158320.

The previous prime is 1385556451. The next prime is 1385556467. The reversal of 1385556463 is 3646555831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385556463 is a prime.

It is a super-2 number, since 2×1385556463² = 3839533424322140738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385556467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193806 + ... + 200827.

It is an arithmetic number, because the mean of its divisors is an integer number (346488652).

Almost surely, 2^1385556463 is an apocalyptic number.

1385556463 is a deficient number, since it is larger than the sum of its proper divisors (398145).

1385556463 is an equidigital number, since it uses as much as digits as its factorization.

1385556463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398144.

The product of its digits is 1296000, while the sum is 46.

The square root of 1385556463 is about 37223.0635896617. The cubic root of 1385556463 is about 1114.8285345669.

The spelling of 1385556463 in words is "one billion, three hundred eighty-five million, five hundred fifty-six thousand, four hundred sixty-three".