1387866119 has 8 divisors (see below), whose sum is σ = 1397176848. Its totient is φ = 1378586880.

The previous prime is 1387866091. The next prime is 1387866143. The reversal of 1387866119 is 9116687831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1387866119 is a prime.

It is a super-2 number, since 2×1387866119² = 3852344728536244322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387866199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84119 + ... + 99255.

It is an arithmetic number, because the mean of its divisors is an integer number (174647106).

Almost surely, 2^1387866119 is an apocalyptic number.

1387866119 is a deficient number, since it is larger than the sum of its proper divisors (9310729).

1387866119 is a wasteful number, since it uses less digits than its factorization.

1387866119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15745.

The product of its digits is 435456, while the sum is 50.

The square root of 1387866119 is about 37254.0751999026. The cubic root of 1387866119 is about 1115.4476458717.

It can be divided in two parts, 13878 and 66119, that added together give a palindrome (79997).

The spelling of 1387866119 in words is "one billion, three hundred eighty-seven million, eight hundred sixty-six thousand, one hundred nineteen".