1387328519 has 2 divisors, whose sum is σ = 1387328520. Its totient is φ = 1387328518.

The previous prime is 1387328497. The next prime is 1387328531. The reversal of 1387328519 is 9158237831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1387328519 - 2¹⁶ = 1387262983 is a prime.

It is a super-2 number, since 2×1387328519² = 3849360839261466722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387328549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693664259 + 693664260.

It is an arithmetic number, because the mean of its divisors is an integer number (693664260).

Almost surely, 2^1387328519 is an apocalyptic number.

1387328519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387328519 is an equidigital number, since it uses as much as digits as its factorization.

1387328519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 1387328519 is about 37246.8591830237. The cubic root of 1387328519 is about 1115.3036016945.

The spelling of 1387328519 in words is "one billion, three hundred eighty-seven million, three hundred twenty-eight thousand, five hundred nineteen".