1387330845 has 16 divisors (see below), whose sum is σ = 2221562112. Its totient is φ = 739298880.

The previous prime is 1387330837. The next prime is 1387330853. The reversal of 1387330845 is 5480337831.

It is an interprime number because it is at equal distance from previous prime (1387330837) and next prime (1387330853).

It is not a de Polignac number, because 1387330845 - 2³ = 1387330837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1387330797 and 1387330806.

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 15 ways as a sum of consecutive naturals, for example, 19102 + ... + 56031.

It is an arithmetic number, because the mean of its divisors is an integer number (138847632).

Almost surely, 2^1387330845 is an apocalyptic number.

1387330845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1387330845 is a deficient number, since it is larger than the sum of its proper divisors (834231267).

1387330845 is a wasteful number, since it uses less digits than its factorization.

1387330845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76372.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 1387330845 is about 37246.8904071199. The cubic root of 1387330845 is about 1115.3042250015.

The spelling of 1387330845 in words is "one billion, three hundred eighty-seven million, three hundred thirty thousand, eight hundred forty-five".