212464739 has 2 divisors, whose sum is σ = 212464740. Its totient is φ = 212464738.

The previous prime is 212464687. The next prime is 212464751. The reversal of 212464739 is 937464212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212464739 - 2¹² = 212460643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212464789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106232369 + 106232370.

It is an arithmetic number, because the mean of its divisors is an integer number (106232370).

Almost surely, 2^212464739 is an apocalyptic number.

212464739 is a deficient number, since it is larger than the sum of its proper divisors (1).

212464739 is an equidigital number, since it uses as much as digits as its factorization.

212464739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 212464739 is about 14576.1702446150. The cubic root of 212464739 is about 596.7085875411.

The spelling of 212464739 in words is "two hundred twelve million, four hundred sixty-four thousand, seven hundred thirty-nine".