1283970161 has 2 divisors, whose sum is σ = 1283970162. Its totient is φ = 1283970160.

The previous prime is 1283970139. The next prime is 1283970167. The reversal of 1283970161 is 1610793821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781537936 + 502432225 = 27956^2 + 22415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283970161 - 2⁶ = 1283970097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1283970167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641985080 + 641985081.

It is an arithmetic number, because the mean of its divisors is an integer number (641985081).

Almost surely, 2^1283970161 is an apocalyptic number.

It is an amenable number.

1283970161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283970161 is an equidigital number, since it uses as much as digits as its factorization.

1283970161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1283970161 is about 35832.5293692756. The cubic root of 1283970161 is about 1086.8884583210. Note that the first 3 decimals are identical.

The spelling of 1283970161 in words is "one billion, two hundred eighty-three million, nine hundred seventy thousand, one hundred sixty-one".