22541147197 has 2 divisors, whose sum is σ = 22541147198. Its totient is φ = 22541147196.

The previous prime is 22541147159. The next prime is 22541147257. The reversal of 22541147197 is 79174114522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19486484836 + 3054662361 = 139594^2 + 55269^2 .

It is a cyclic number.

It is not a de Polignac number, because 22541147197 - 2¹¹ = 22541145149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22541147597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270573598 + 11270573599.

It is an arithmetic number, because the mean of its divisors is an integer number (11270573599).

Almost surely, 2^22541147197 is an apocalyptic number.

It is an amenable number.

22541147197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22541147197 is an equidigital number, since it uses as much as digits as its factorization.

22541147197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 43.

The spelling of 22541147197 in words is "twenty-two billion, five hundred forty-one million, one hundred forty-seven thousand, one hundred ninety-seven".