73151860 has 24 divisors (see below), whose sum is σ = 154201320. Its totient is φ = 29149824.

The previous prime is 73151809. The next prime is 73151861. The reversal of 73151860 is 6815137.

It can be written as a sum of positive squares in 4 ways, for example, as 2390116 + 70761744 = 1546^2 + 8412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73151861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1419 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (6425055).

Almost surely, 2^73151860 is an apocalyptic number.

It is an amenable number.

73151860 is an abundant number, since it is smaller than the sum of its proper divisors (81049460).

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

73151860 is a wasteful number, since it uses less digits than its factorization.

73151860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13875 (or 13873 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 73151860 is about 8552.8860626107. The cubic root of 73151860 is about 418.2235245967.

Adding to 73151860 its reverse (6815137), we get a palindrome (79966997).

The spelling of 73151860 in words is "seventy-three million, one hundred fifty-one thousand, eight hundred sixty".