81483545 has 16 divisors (see below), whose sum is σ = 114875712. Its totient is φ = 54701760.

The previous prime is 81483541. The next prime is 81483559. The reversal of 81483545 is 54538418.

It is not a de Polignac number, because 81483545 - 2² = 81483541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 81483499 and 81483508.

It is not an unprimeable number, because it can be changed into a prime (81483541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56267 + ... + 57696.

It is an arithmetic number, because the mean of its divisors is an integer number (7179732).

Almost surely, 2^81483545 is an apocalyptic number.

It is an amenable number.

81483545 is a deficient number, since it is larger than the sum of its proper divisors (33392167).

81483545 is a wasteful number, since it uses less digits than its factorization.

81483545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113992.

The product of its digits is 76800, while the sum is 38.

The square root of 81483545 is about 9026.8236384677. The cubic root of 81483545 is about 433.5341419727.

It can be divided in two parts, 81483 and 545, that added together give a palindrome (82028).

The spelling of 81483545 in words is "eighty-one million, four hundred eighty-three thousand, five hundred forty-five".