212769001 has 2 divisors, whose sum is σ = 212769002. Its totient is φ = 212769000.

The previous prime is 212768999. The next prime is 212769043. The reversal of 212769001 is 100967212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157251600 + 55517401 = 12540^2 + 7451^2 .

It is a cyclic number.

It is not a de Polignac number, because 212769001 - 2¹ = 212768999 is a prime.

Together with 212768999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212769061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106384500 + 106384501.

It is an arithmetic number, because the mean of its divisors is an integer number (106384501).

Almost surely, 2^212769001 is an apocalyptic number.

It is an amenable number.

212769001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212769001 is an equidigital number, since it uses as much as digits as its factorization.

212769001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 212769001 is about 14586.6034771636. The cubic root of 212769001 is about 596.9932922751.

The spelling of 212769001 in words is "two hundred twelve million, seven hundred sixty-nine thousand, one".