72450001 has 8 divisors (see below), whose sum is σ = 78369984. Its totient is φ = 66579600.

The previous prime is 72449999. The next prime is 72450017. The reversal of 72450001 is 10005427.

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

It is a cyclic number.

It is not a de Polignac number, because 72450001 - 2¹ = 72449999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72450041) 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, 9325 + ... + 15226.

It is an arithmetic number, because the mean of its divisors is an integer number (9796248).

Almost surely, 2^72450001 is an apocalyptic number.

It is an amenable number.

72450001 is a deficient number, since it is larger than the sum of its proper divisors (5919983).

72450001 is a wasteful number, since it uses less digits than its factorization.

72450001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24791.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 72450001 is about 8511.7566342089. The cubic root of 72450001 is about 416.8816687366.

Adding to 72450001 its reverse (10005427), we get a palindrome (82455428).

The spelling of 72450001 in words is "seventy-two million, four hundred fifty thousand, one".