22158041 has 2 divisors, whose sum is σ = 22158042. Its totient is φ = 22158040.

The previous prime is 22158011. The next prime is 22158043. The reversal of 22158041 is 14085122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22052416 + 105625 = 4696^2 + 325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22158041 is a prime.

Together with 22158043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22157998 and 22158016.

It is not a weakly prime, because it can be changed into another prime (22158043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11079020 + 11079021.

It is an arithmetic number, because the mean of its divisors is an integer number (11079021).

Almost surely, 2^22158041 is an apocalyptic number.

It is an amenable number.

22158041 is a deficient number, since it is larger than the sum of its proper divisors (1).

22158041 is an equidigital number, since it uses as much as digits as its factorization.

22158041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 22158041 is about 4707.2328389405. The cubic root of 22158041 is about 280.8732980798.

The spelling of 22158041 in words is "twenty-two million, one hundred fifty-eight thousand, forty-one".