1481518519 has 4 divisors (see below), whose sum is σ = 1595481496. Its totient is φ = 1367555544.

The previous prime is 1481518457. The next prime is 1481518547. The reversal of 1481518519 is 9158151841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9158151841 = 39443 ⋅232187.

It is a cyclic number.

It is not a de Polignac number, because 1481518519 - 2⁹ = 1481518007 is a prime.

It is a super-2 number, since 2×1481518519² = 4389794244279906722, 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 (1481518579) by changing a digit.

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, 56981469 + ... + 56981494.

It is an arithmetic number, because the mean of its divisors is an integer number (398870374).

Almost surely, 2^1481518519 is an apocalyptic number.

1481518519 is the 22223-rd hex number.

1481518519 is a deficient number, since it is larger than the sum of its proper divisors (113962977).

1481518519 is a wasteful number, since it uses less digits than its factorization.

1481518519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113962976.

The product of its digits is 57600, while the sum is 43.

The square root of 1481518519 is about 38490.4990744469. The cubic root of 1481518519 is about 1139.9934643618.

The spelling of 1481518519 in words is "one billion, four hundred eighty-one million, five hundred eighteen thousand, five hundred nineteen".