212630983 has 2 divisors, whose sum is σ = 212630984. Its totient is φ = 212630982.

The previous prime is 212630939. The next prime is 212631007. The reversal of 212630983 is 389036212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212630983 - 2⁹ = 212630471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212630923) 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, 106315491 + 106315492.

It is an arithmetic number, because the mean of its divisors is an integer number (106315492).

Almost surely, 2^212630983 is an apocalyptic number.

212630983 is a deficient number, since it is larger than the sum of its proper divisors (1).

212630983 is an equidigital number, since it uses as much as digits as its factorization.

212630983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 212630983 is about 14581.8717248507. The cubic root of 212630983 is about 596.8641794151.

The spelling of 212630983 in words is "two hundred twelve million, six hundred thirty thousand, nine hundred eighty-three".