73351530 has 72 divisors (see below), whose sum is σ = 221864292. Its totient is φ = 16765056.

The previous prime is 73351529. The next prime is 73351541. The reversal of 73351530 is 3515337.

It can be written as a sum of positive squares in 2 ways, for example, as 68112009 + 5239521 = 8253^2 + 2289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73351494 and 73351503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3907 + ... + 12726.

Almost surely, 2^73351530 is an apocalyptic number.

73351530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73351530 is an abundant number, since it is smaller than the sum of its proper divisors (148512762).

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

73351530 is a wasteful number, since it uses less digits than its factorization.

73351530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16660 (or 16650 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 73351530 is about 8564.5507763105. The cubic root of 73351530 is about 418.6036964212.

Adding to 73351530 its reverse (3515337), we get a palindrome (76866867).

The spelling of 73351530 in words is "seventy-three million, three hundred fifty-one thousand, five hundred thirty".