19228541 has 2 divisors, whose sum is σ = 19228542. Its totient is φ = 19228540.

The previous prime is 19228519. The next prime is 19228571. The reversal of 19228541 is 14582291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19175641 + 52900 = 4379^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 19228541 - 2²² = 15034237 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 19228498 and 19228507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19228501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9614270 + 9614271.

It is an arithmetic number, because the mean of its divisors is an integer number (9614271).

Almost surely, 2^19228541 is an apocalyptic number.

It is an amenable number.

19228541 is a deficient number, since it is larger than the sum of its proper divisors (1).

19228541 is an equidigital number, since it uses as much as digits as its factorization.

19228541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 32.

The square root of 19228541 is about 4385.0360317790. The cubic root of 19228541 is about 267.9057968829.

The spelling of 19228541 in words is "nineteen million, two hundred twenty-eight thousand, five hundred forty-one".