72312010 has 8 divisors (see below), whose sum is σ = 130161636. Its totient is φ = 28924800.

The previous prime is 72312001. The next prime is 72312013. The reversal of 72312010 is 1021327.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68773849 + 3538161 = 8293^2 + 1881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72312013) 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 3 ways as a sum of consecutive naturals, for example, 3615591 + ... + 3615610.

Almost surely, 2^72312010 is an apocalyptic number.

72312010 is a deficient number, since it is larger than the sum of its proper divisors (57849626).

72312010 is a wasteful number, since it uses less digits than its factorization.

72312010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231208.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 72312010 is about 8503.6468647281. The cubic root of 72312010 is about 416.6168310174.

Adding to 72312010 its reverse (1021327), we get a palindrome (73333337).

The spelling of 72312010 in words is "seventy-two million, three hundred twelve thousand, ten".