506001111149 has 2 divisors, whose sum is σ = 506001111150. Its totient is φ = 506001111148.

The previous prime is 506001111019. The next prime is 506001111157. The reversal of 506001111149 is 941111100605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399974029225 + 106027081924 = 632435^2 + 325618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506001111149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506001111169) 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, 253000555574 + 253000555575.

It is an arithmetic number, because the mean of its divisors is an integer number (253000555575).

Almost surely, 2^506001111149 is an apocalyptic number.

It is an amenable number.

506001111149 is a deficient number, since it is larger than the sum of its proper divisors (1).

506001111149 is an equidigital number, since it uses as much as digits as its factorization.

506001111149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 506001111149 in words is "five hundred six billion, one million, one hundred eleven thousand, one hundred forty-nine".