512044991 has 2 divisors, whose sum is σ = 512044992. Its totient is φ = 512044990.

The previous prime is 512044987. The next prime is 512045029. The reversal of 512044991 is 199440215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 512044991 - 2² = 512044987 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512044901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256022495 + 256022496.

It is an arithmetic number, because the mean of its divisors is an integer number (256022496).

Almost surely, 2^512044991 is an apocalyptic number.

512044991 is a deficient number, since it is larger than the sum of its proper divisors (1).

512044991 is an equidigital number, since it uses as much as digits as its factorization.

512044991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 512044991 is about 22628.4111461676. The cubic root of 512044991 is about 800.0234321262.

The spelling of 512044991 in words is "five hundred twelve million, forty-four thousand, nine hundred ninety-one".