1385955105 has 16 divisors (see below), whose sum is σ = 2220329664. Its totient is φ = 738242240.

The previous prime is 1385955101. The next prime is 1385955113. The reversal of 1385955105 is 5015595831.

It is not a de Polignac number, because 1385955105 - 2² = 1385955101 is a prime.

It is a super-2 number, since 2×1385955105² = 3841743106151122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1385955101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46011 + ... + 69920.

It is an arithmetic number, because the mean of its divisors is an integer number (138770604).

Almost surely, 2^1385955105 is an apocalyptic number.

1385955105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1385955105 is a deficient number, since it is larger than the sum of its proper divisors (834374559).

1385955105 is a wasteful number, since it uses less digits than its factorization.

1385955105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116736.

The product of its (nonzero) digits is 135000, while the sum is 42.

The square root of 1385955105 is about 37228.4179760569. The cubic root of 1385955105 is about 1114.9354410394.

The spelling of 1385955105 in words is "one billion, three hundred eighty-five million, nine hundred fifty-five thousand, one hundred five".