72101201 has 8 divisors (see below), whose sum is σ = 73016640. Its totient is φ = 71190448.

The previous prime is 72101191. The next prime is 72101203. The reversal of 72101201 is 10210127.

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 72101201 - 2²² = 67906897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72101203) 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, 37475 + ... + 39351.

It is an arithmetic number, because the mean of its divisors is an integer number (9127080).

Almost surely, 2^72101201 is an apocalyptic number.

It is an amenable number.

72101201 is a deficient number, since it is larger than the sum of its proper divisors (915439).

72101201 is a wasteful number, since it uses less digits than its factorization.

72101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 72101201 is about 8491.2426063563. The cubic root of 72101201 is about 416.2115868444.

Adding to 72101201 its reverse (10210127), we get a palindrome (82311328).

The spelling of 72101201 in words is "seventy-two million, one hundred one thousand, two hundred one".