1387148918 has 8 divisors (see below), whose sum is σ = 2082067848. Its totient is φ = 693126304.

The previous prime is 1387148897. The next prime is 1387148923. The reversal of 1387148918 is 8198417831.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220196 + ... + 226407.

It is an arithmetic number, because the mean of its divisors is an integer number (260258481).

Almost surely, 2^1387148918 is an apocalyptic number.

1387148918 is a deficient number, since it is larger than the sum of its proper divisors (694918930).

1387148918 is a wasteful number, since it uses less digits than its factorization.

1387148918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448158.

The product of its digits is 387072, while the sum is 50.

The square root of 1387148918 is about 37244.4481500263. The cubic root of 1387148918 is about 1115.2554712328.

The spelling of 1387148918 in words is "one billion, three hundred eighty-seven million, one hundred forty-eight thousand, nine hundred eighteen".