1481617543 has 4 divisors (see below), whose sum is σ = 1693277200. Its totient is φ = 1269957888.

The previous prime is 1481617531. The next prime is 1481617559. The reversal of 1481617543 is 3457161841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3457161841 = 7 ⋅493880263.

It is a cyclic number.

It is not a de Polignac number, because 1481617543 - 2²¹ = 1479520391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1481617496 and 1481617505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481617513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105829818 + ... + 105829831.

It is an arithmetic number, because the mean of its divisors is an integer number (423319300).

Almost surely, 2^1481617543 is an apocalyptic number.

1481617543 is a deficient number, since it is larger than the sum of its proper divisors (211659657).

1481617543 is an equidigital number, since it uses as much as digits as its factorization.

1481617543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211659656.

The product of its digits is 80640, while the sum is 40.

The square root of 1481617543 is about 38491.7853963674. The cubic root of 1481617543 is about 1140.0188626714.

The spelling of 1481617543 in words is "one billion, four hundred eighty-one million, six hundred seventeen thousand, five hundred forty-three".