1384278141 has 8 divisors (see below), whose sum is σ = 1909349280. Its totient is φ = 891029552.

The previous prime is 1384278127. The next prime is 1384278157. The reversal of 1384278141 is 1418724831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1384278141 - 2⁵ = 1384278109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1384278141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384278191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7955535 + ... + 7955708.

It is an arithmetic number, because the mean of its divisors is an integer number (238668660).

Almost surely, 2^1384278141 is an apocalyptic number.

It is an amenable number.

1384278141 is a deficient number, since it is larger than the sum of its proper divisors (525071139).

1384278141 is a wasteful number, since it uses less digits than its factorization.

1384278141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15911275.

The product of its digits is 43008, while the sum is 39.

The square root of 1384278141 is about 37205.8885258772. Note that the first 3 decimals coincide. The cubic root of 1384278141 is about 1114.4855800991.

The spelling of 1384278141 in words is "one billion, three hundred eighty-four million, two hundred seventy-eight thousand, one hundred forty-one".