72198341 has 2 divisors, whose sum is σ = 72198342. Its totient is φ = 72198340.

The previous prime is 72198331. The next prime is 72198367. The reversal of 72198341 is 14389127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59737441 + 12460900 = 7729^2 + 3530^2 .

It is an emirp because it is prime and its reverse (14389127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72198341 - 2⁶ = 72198277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72198331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36099170 + 36099171.

It is an arithmetic number, because the mean of its divisors is an integer number (36099171).

Almost surely, 2^72198341 is an apocalyptic number.

It is an amenable number.

72198341 is a deficient number, since it is larger than the sum of its proper divisors (1).

72198341 is an equidigital number, since it uses as much as digits as its factorization.

72198341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 72198341 is about 8496.9606919180. The cubic root of 72198341 is about 416.3984198396.

The spelling of 72198341 in words is "seventy-two million, one hundred ninety-eight thousand, three hundred forty-one".