72213001 has 8 divisors (see below), whose sum is σ = 82621440. Its totient is φ = 61827648.

The previous prime is 72212983. The next prime is 72213007. The reversal of 72213001 is 10031227.

It is a happy number.

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 72213001 - 2²³ = 63824393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72213007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560 + ... + 12118.

It is an arithmetic number, because the mean of its divisors is an integer number (10327680).

Almost surely, 2^72213001 is an apocalyptic number.

It is an amenable number.

72213001 is a deficient number, since it is larger than the sum of its proper divisors (10408439).

72213001 is a wasteful number, since it uses less digits than its factorization.

72213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543.

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

The square root of 72213001 is about 8497.8233095305. The cubic root of 72213001 is about 416.4266014092.

Adding to 72213001 its reverse (10031227), we get a palindrome (82244228).

The spelling of 72213001 in words is "seventy-two million, two hundred thirteen thousand, one".