1386120051 has 12 divisors (see below), whose sum is σ = 2020886712. Its totient is φ = 915443136.

The previous prime is 1386120049. The next prime is 1386120067. The reversal of 1386120051 is 1500216831.

1386120051 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1386120051 - 2¹ = 1386120049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1386119997 and 1386120024.

It is not an unprimeable number, because it can be changed into a prime (1386120451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718726 + ... + 720651.

It is an arithmetic number, because the mean of its divisors is an integer number (168407226).

Almost surely, 2^1386120051 is an apocalyptic number.

1386120051 is a deficient number, since it is larger than the sum of its proper divisors (634766661).

1386120051 is a wasteful number, since it uses less digits than its factorization.

1386120051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439490 (or 1439487 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1386120051 is about 37230.6332339379. The cubic root of 1386120051 is about 1114.9796697078.

Adding to 1386120051 its reverse (1500216831), we get a palindrome (2886336882).

The spelling of 1386120051 in words is "one billion, three hundred eighty-six million, one hundred twenty thousand, fifty-one".