81060548 has 6 divisors (see below), whose sum is σ = 141855966. Its totient is φ = 40530272.

The previous prime is 81060527. The next prime is 81060569. The reversal of 81060548 is 84506018.

It is an interprime number because it is at equal distance from previous prime (81060527) and next prime (81060569).

It can be written as a sum of positive squares in only one way, i.e., 77404804 + 3655744 = 8798^2 + 1912^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132565 + ... + 10132572.

It is an arithmetic number, because the mean of its divisors is an integer number (23642661).

Almost surely, 2^81060548 is an apocalyptic number.

It is an amenable number.

81060548 is a deficient number, since it is larger than the sum of its proper divisors (60795418).

81060548 is a wasteful number, since it uses less digits than its factorization.

81060548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20265141 (or 20265139 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 81060548 is about 9003.3631494015. The cubic root of 81060548 is about 432.7826532864.

The spelling of 81060548 in words is "eighty-one million, sixty thousand, five hundred forty-eight".