73105540 has 24 divisors (see below), whose sum is σ = 161602560. Its totient is φ = 27703008.

The previous prime is 73105499. The next prime is 73105541. The reversal of 73105540 is 4550137.

73105540 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

73105540 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (73105541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95812 + ... + 96571.

It is an arithmetic number, because the mean of its divisors is an integer number (6733440).

Almost surely, 2^73105540 is an apocalyptic number.

It is an amenable number.

73105540 is an abundant number, since it is smaller than the sum of its proper divisors (88497020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73105540 is a wasteful number, since it uses less digits than its factorization.

73105540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192411 (or 192409 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 73105540 is about 8550.1777759296. The cubic root of 73105540 is about 418.1352324516.

Adding to 73105540 its reverse (4550137), we get a palindrome (77655677).

The spelling of 73105540 in words is "seventy-three million, one hundred five thousand, five hundred forty".