1384387155 has 12 divisors (see below), whose sum is σ = 2399604480. Its totient is φ = 738339792.

The previous prime is 1384387141. The next prime is 1384387159. The reversal of 1384387155 is 5517834831.

It is a happy number.

It is not a de Polignac number, because 1384387155 - 2¹⁶ = 1384321619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 30764159 = 1384387155 / (1 + 3 + 8 + 4 + 3 + 8 + 7 + 1 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1384387155.

It is not an unprimeable number, because it can be changed into a prime (1384387159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15382035 + ... + 15382124.

It is an arithmetic number, because the mean of its divisors is an integer number (199967040).

Almost surely, 2^1384387155 is an apocalyptic number.

1384387155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1384387155 is a deficient number, since it is larger than the sum of its proper divisors (1015217325).

1384387155 is a wasteful number, since it uses less digits than its factorization.

1384387155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30764170 (or 30764167 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 1384387155 is about 37207.3535070690. The cubic root of 1384387155 is about 1114.5148351402.

The spelling of 1384387155 in words is "one billion, three hundred eighty-four million, three hundred eighty-seven thousand, one hundred fifty-five".