1385645045 has 8 divisors (see below), whose sum is σ = 1664408760. Its totient is φ = 1107426240.

The previous prime is 1385645039. The next prime is 1385645059. The reversal of 1385645045 is 5405465831.

It can be written as a sum of positive squares in 4 ways, for example, as 219217636 + 1166427409 = 14806^2 + 34153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1385645045 - 2¹⁰ = 1385644021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1385644993 and 1385645011.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 130610 + ... + 140819.

It is an arithmetic number, because the mean of its divisors is an integer number (208051095).

Almost surely, 2^1385645045 is an apocalyptic number.

It is an amenable number.

1385645045 is a deficient number, since it is larger than the sum of its proper divisors (278763715).

1385645045 is a wasteful number, since it uses less digits than its factorization.

1385645045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272455.

The product of its (nonzero) digits is 288000, while the sum is 41.

The square root of 1385645045 is about 37224.2534512111. The cubic root of 1385645045 is about 1114.8522919619.

The spelling of 1385645045 in words is "one billion, three hundred eighty-five million, six hundred forty-five thousand, forty-five".