72227141 has 4 divisors (see below), whose sum is σ = 82545312. Its totient is φ = 61908972.

The previous prime is 72227123. The next prime is 72227159. The reversal of 72227141 is 14172227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (72227123) and next prime (72227159).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72227141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72227141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72227161) 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 3 ways as a sum of consecutive naturals, for example, 5159075 + ... + 5159088.

It is an arithmetic number, because the mean of its divisors is an integer number (20636328).

Almost surely, 2^72227141 is an apocalyptic number.

It is an amenable number.

72227141 is a deficient number, since it is larger than the sum of its proper divisors (10318171).

72227141 is a wasteful number, since it uses less digits than its factorization.

72227141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10318170.

The product of its digits is 1568, while the sum is 26.

The square root of 72227141 is about 8498.6552465670. The cubic root of 72227141 is about 416.4537797463.

Adding to 72227141 its reverse (14172227), we get a palindrome (86399368).

The spelling of 72227141 in words is "seventy-two million, two hundred twenty-seven thousand, one hundred forty-one".