1385128093 has 8 divisors (see below), whose sum is σ = 1418428800. Its totient is φ = 1352221728.

The previous prime is 1385128067. The next prime is 1385128099. The reversal of 1385128093 is 3908215831.

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

It is a cyclic number.

It is not a de Polignac number, because 1385128093 - 2²¹ = 1383030941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385128099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91471 + ... + 105532.

It is an arithmetic number, because the mean of its divisors is an integer number (177303600).

Almost surely, 2^1385128093 is an apocalyptic number.

It is an amenable number.

1385128093 is a deficient number, since it is larger than the sum of its proper divisors (33300707).

1385128093 is an equidigital number, since it uses as much as digits as its factorization.

1385128093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197171.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1385128093 is about 37217.3090510316. The cubic root of 1385128093 is about 1114.7136328803.

The spelling of 1385128093 in words is "one billion, three hundred eighty-five million, one hundred twenty-eight thousand, ninety-three".