1970123 has 2 divisors, whose sum is σ = 1970124. Its totient is φ = 1970122.

The previous prime is 1970119. The next prime is 1970149. The reversal of 1970123 is 3210791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1970123 - 2² = 1970119 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1970183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985061 + 985062.

It is an arithmetic number, because the mean of its divisors is an integer number (985062).

2^1970123 is an apocalyptic number.

1970123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970123 is an equidigital number, since it uses as much as digits as its factorization.

1970123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1970123 is about 1403.6107010136. The cubic root of 1970123 is about 125.3615770876.

The spelling of 1970123 in words is "one million, nine hundred seventy thousand, one hundred twenty-three".