505441147 has 2 divisors, whose sum is σ = 505441148. Its totient is φ = 505441146.

The previous prime is 505441133. The next prime is 505441159. The reversal of 505441147 is 741144505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505441147 is a prime.

It is not a weakly prime, because it can be changed into another prime (505441187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252720573 + 252720574.

It is an arithmetic number, because the mean of its divisors is an integer number (252720574).

Almost surely, 2^505441147 is an apocalyptic number.

505441147 is a deficient number, since it is larger than the sum of its proper divisors (1).

505441147 is an equidigital number, since it uses as much as digits as its factorization.

505441147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 505441147 is about 22482.0183035243. The cubic root of 505441147 is about 796.5692391103.

The spelling of 505441147 in words is "five hundred five million, four hundred forty-one thousand, one hundred forty-seven".