70543169 has 2 divisors, whose sum is σ = 70543170. Its totient is φ = 70543168.

The previous prime is 70543157. The next prime is 70543211. The reversal of 70543169 is 96134507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50410000 + 20133169 = 7100^2 + 4487^2 .

It is a cyclic number.

It is not a de Polignac number, because 70543169 - 2¹⁶ = 70477633 is a prime.

It is a super-2 number, since 2×70543169² = 9952677385125122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70543069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35271584 + 35271585.

It is an arithmetic number, because the mean of its divisors is an integer number (35271585).

Almost surely, 2^70543169 is an apocalyptic number.

It is an amenable number.

70543169 is a deficient number, since it is larger than the sum of its proper divisors (1).

70543169 is an equidigital number, since it uses as much as digits as its factorization.

70543169 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 35.

The square root of 70543169 is about 8398.9980950111. The cubic root of 70543169 is about 413.1917629252.

The spelling of 70543169 in words is "seventy million, five hundred forty-three thousand, one hundred sixty-nine".