212992919 has 2 divisors, whose sum is σ = 212992920. Its totient is φ = 212992918.

The previous prime is 212992877. The next prime is 212992921. The reversal of 212992919 is 919299212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212992919 - 2²⁴ = 196215703 is a prime.

It is a super-2 number, since 2×212992919² = 90731967088281122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 212992921, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212992919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212992939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106496459 + 106496460.

It is an arithmetic number, because the mean of its divisors is an integer number (106496460).

Almost surely, 2^212992919 is an apocalyptic number.

212992919 is a deficient number, since it is larger than the sum of its proper divisors (1).

212992919 is an equidigital number, since it uses as much as digits as its factorization.

212992919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 44.

The square root of 212992919 is about 14594.2769262475. The cubic root of 212992919 is about 597.2026440082.

The spelling of 212992919 in words is "two hundred twelve million, nine hundred ninety-two thousand, nine hundred nineteen".