512149189 has 2 divisors, whose sum is σ = 512149190. Its totient is φ = 512149188.

The previous prime is 512149151. The next prime is 512149241. The reversal of 512149189 is 981941215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450840289 + 61308900 = 21233^2 + 7830^2 .

It is a cyclic number.

It is not a de Polignac number, because 512149189 - 2¹⁵ = 512116421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512149289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256074594 + 256074595.

It is an arithmetic number, because the mean of its divisors is an integer number (256074595).

Almost surely, 2^512149189 is an apocalyptic number.

It is an amenable number.

512149189 is a deficient number, since it is larger than the sum of its proper divisors (1).

512149189 is an equidigital number, since it uses as much as digits as its factorization.

512149189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 40.

The square root of 512149189 is about 22630.7134001560. The cubic root of 512149189 is about 800.0776950583.

The spelling of 512149189 in words is "five hundred twelve million, one hundred forty-nine thousand, one hundred eighty-nine".