212001983 has 2 divisors, whose sum is σ = 212001984. Its totient is φ = 212001982.

The previous prime is 212001973. The next prime is 212002027. The reversal of 212001983 is 389100212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212001983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212001973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000991 + 106000992.

It is an arithmetic number, because the mean of its divisors is an integer number (106000992).

Almost surely, 2^212001983 is an apocalyptic number.

212001983 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001983 is an equidigital number, since it uses as much as digits as its factorization.

212001983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 212001983 is about 14560.2878749014. The cubic root of 212001983 is about 596.2750549034.

The spelling of 212001983 in words is "two hundred twelve million, one thousand, nine hundred eighty-three".