72001010 has 8 divisors (see below), whose sum is σ = 129601836. Its totient is φ = 28800400.

The previous prime is 72000991. The next prime is 72001019. The reversal of 72001010 is 1010027.

It can be written as a sum of positive squares in 2 ways, for example, as 60637369 + 11363641 = 7787^2 + 3371^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72000982 and 72001000.

It is not an unprimeable number, because it can be changed into a prime (72001019) 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, 3600041 + ... + 3600060.

Almost surely, 2^72001010 is an apocalyptic number.

72001010 is a deficient number, since it is larger than the sum of its proper divisors (57600826).

72001010 is a wasteful number, since it uses less digits than its factorization.

72001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200108.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 72001010 is about 8485.3408888506. The cubic root of 72001010 is about 416.0187098649.

Adding to 72001010 its reverse (1010027), we get a palindrome (73011037).

The spelling of 72001010 in words is "seventy-two million, one thousand, ten".