1385328051 has 6 divisors (see below), whose sum is σ = 2001029420. Its totient is φ = 923552028.

The previous prime is 1385328047. The next prime is 1385328067. The reversal of 1385328051 is 1508235831.

It is not a de Polignac number, because 1385328051 - 2² = 1385328047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1385327997 and 1385328015.

It is not an unprimeable number, because it can be changed into a prime (1385326051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76962661 + ... + 76962678.

Almost surely, 2^1385328051 is an apocalyptic number.

1385328051 is a deficient number, since it is larger than the sum of its proper divisors (615701369).

1385328051 is a wasteful number, since it uses less digits than its factorization.

1385328051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153925345 (or 153925342 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1385328051 is about 37219.9953116601. The cubic root of 1385328051 is about 1114.7672705631.

The spelling of 1385328051 in words is "one billion, three hundred eighty-five million, three hundred twenty-eight thousand, fifty-one".