72200261 has 8 divisors (see below), whose sum is σ = 82615104. Its totient is φ = 61810560.

The previous prime is 72200213. The next prime is 72200263. The reversal of 72200261 is 16200227.

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

It is a de Polignac number, because none of the positive numbers 2^k-72200261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72200263) 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, 341 + ... + 12021.

It is an arithmetic number, because the mean of its divisors is an integer number (10326888).

Almost surely, 2^72200261 is an apocalyptic number.

It is an amenable number.

72200261 is a deficient number, since it is larger than the sum of its proper divisors (10414843).

72200261 is a wasteful number, since it uses less digits than its factorization.

72200261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12571.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 72200261 is about 8497.0736727417. The cubic root of 72200261 is about 416.4021109580.

Adding to 72200261 its reverse (16200227), we get a palindrome (88400488).

The spelling of 72200261 in words is "seventy-two million, two hundred thousand, two hundred sixty-one".