1385639101 has 48 divisors (see below), whose sum is σ = 1820206080. Its totient is φ = 1042429920.

The previous prime is 1385639093. The next prime is 1385639137. The reversal of 1385639101 is 1019365831.

It is not a de Polignac number, because 1385639101 - 2³ = 1385639093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385639191) 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 47 ways as a sum of consecutive naturals, for example, 2102310 + ... + 2102968.

It is an arithmetic number, because the mean of its divisors is an integer number (37920960).

Almost surely, 2^1385639101 is an apocalyptic number.

1385639101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1385639101 is a deficient number, since it is larger than the sum of its proper divisors (434566979).

1385639101 is a wasteful number, since it uses less digits than its factorization.

1385639101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1385639101 is about 37224.1736107063. The cubic root of 1385639101 is about 1114.8506978328.

The spelling of 1385639101 in words is "one billion, three hundred eighty-five million, six hundred thirty-nine thousand, one hundred one".