81024548 has 24 divisors (see below), whose sum is σ = 155875104. Its totient is φ = 36545600.

The previous prime is 81024547. The next prime is 81024553. The reversal of 81024548 is 84542018.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (81024547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265 + ... + 12792.

It is an arithmetic number, because the mean of its divisors is an integer number (6494796).

Almost surely, 2^81024548 is an apocalyptic number.

It is an amenable number.

81024548 is a deficient number, since it is larger than the sum of its proper divisors (74850556).

81024548 is a wasteful number, since it uses less digits than its factorization.

81024548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14203 (or 14201 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 81024548 is about 9001.3636744662. The cubic root of 81024548 is about 432.7185757422.

The spelling of 81024548 in words is "eighty-one million, twenty-four thousand, five hundred forty-eight".