1210957049 has 2 divisors, whose sum is σ = 1210957050. Its totient is φ = 1210957048.

The previous prime is 1210957009. The next prime is 1210957081. The reversal of 1210957049 is 9407590121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1208257600 + 2699449 = 34760^2 + 1643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210957049 is a prime.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (1210957009) 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, 605478524 + 605478525.

It is an arithmetic number, because the mean of its divisors is an integer number (605478525).

Almost surely, 2^1210957049 is an apocalyptic number.

It is an amenable number.

1210957049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210957049 is an equidigital number, since it uses as much as digits as its factorization.

1210957049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1210957049 is about 34798.8081548779. The cubic root of 1210957049 is about 1065.8831086107.

The spelling of 1210957049 in words is "one billion, two hundred ten million, nine hundred fifty-seven thousand, forty-nine".