505740167 has 2 divisors, whose sum is σ = 505740168. Its totient is φ = 505740166.

The previous prime is 505740133. The next prime is 505740199. The reversal of 505740167 is 761047505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505740167 - 2⁸ = 505739911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505740127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252870083 + 252870084.

It is an arithmetic number, because the mean of its divisors is an integer number (252870084).

Almost surely, 2^505740167 is an apocalyptic number.

505740167 is a deficient number, since it is larger than the sum of its proper divisors (1).

505740167 is an equidigital number, since it uses as much as digits as its factorization.

505740167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 505740167 is about 22488.6675238886. The cubic root of 505740167 is about 796.7262921319.

The spelling of 505740167 in words is "five hundred five million, seven hundred forty thousand, one hundred sixty-seven".