72102202 has 8 divisors (see below), whose sum is σ = 114515316. Its totient is φ = 33930432.

The previous prime is 72102181. The next prime is 72102203. The reversal of 72102202 is 20220127.

It can be written as a sum of positive squares in 2 ways, for example, as 71216721 + 885481 = 8439^2 + 941^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72102203) 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, 1060293 + ... + 1060360.

Almost surely, 2^72102202 is an apocalyptic number.

72102202 is a deficient number, since it is larger than the sum of its proper divisors (42413114).

72102202 is a wasteful number, since it uses less digits than its factorization.

72102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120672.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 72102202 is about 8491.3015492326. The cubic root of 72102202 is about 416.2135129606.

Adding to 72102202 its reverse (20220127), we get a palindrome (92322329).

The spelling of 72102202 in words is "seventy-two million, one hundred two thousand, two hundred two".