1204145171 has 2 divisors, whose sum is σ = 1204145172. Its totient is φ = 1204145170.

The previous prime is 1204145153. The next prime is 1204145177. The reversal of 1204145171 is 1715414021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1204145171 - 2¹⁴ = 1204128787 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204145171.

It is not a weakly prime, because it can be changed into another prime (1204145177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602072585 + 602072586.

It is an arithmetic number, because the mean of its divisors is an integer number (602072586).

Almost surely, 2^1204145171 is an apocalyptic number.

1204145171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204145171 is an equidigital number, since it uses as much as digits as its factorization.

1204145171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1204145171 is about 34700.7949620754. The cubic root of 1204145171 is about 1063.8807467468.

Adding to 1204145171 its reverse (1715414021), we get a palindrome (2919559192).

The spelling of 1204145171 in words is "one billion, two hundred four million, one hundred forty-five thousand, one hundred seventy-one".