512121983 has 2 divisors, whose sum is σ = 512121984. Its totient is φ = 512121982.

The previous prime is 512121977. The next prime is 512122019. The reversal of 512121983 is 389121215.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 512121983 - 2¹⁴ = 512105599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512126983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256060991 + 256060992.

It is an arithmetic number, because the mean of its divisors is an integer number (256060992).

Almost surely, 2^512121983 is an apocalyptic number.

512121983 is a deficient number, since it is larger than the sum of its proper divisors (1).

512121983 is an equidigital number, since it uses as much as digits as its factorization.

512121983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 512121983 is about 22630.1123063939. The cubic root of 512121983 is about 800.0635277676.

The spelling of 512121983 in words is "five hundred twelve million, one hundred twenty-one thousand, nine hundred eighty-three".