1210009973 has 2 divisors, whose sum is σ = 1210009974. Its totient is φ = 1210009972.

The previous prime is 1210009963. The next prime is 1210009987. The reversal of 1210009973 is 3799000121.

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., 935014084 + 274995889 = 30578^2 + 16583^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210009973 - 2⁶ = 1210009909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210009943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605004986 + 605004987.

It is an arithmetic number, because the mean of its divisors is an integer number (605004987).

Almost surely, 2^1210009973 is an apocalyptic number.

It is an amenable number.

1210009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210009973 is an equidigital number, since it uses as much as digits as its factorization.

1210009973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1210009973 is about 34785.1976133527. The cubic root of 1210009973 is about 1065.6051643760.

The spelling of 1210009973 in words is "one billion, two hundred ten million, nine thousand, nine hundred seventy-three".