70543069 has 2 divisors, whose sum is σ = 70543070. Its totient is φ = 70543068.

The previous prime is 70543043. The next prime is 70543157. The reversal of 70543069 is 96034507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61811044 + 8732025 = 7862^2 + 2955^2 .

It is an emirp because it is prime and its reverse (96034507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70543069 - 2⁵ = 70543037 is a prime.

It is a super-2 number, since 2×70543069² = 9952649167877522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70543019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35271534 + 35271535.

It is an arithmetic number, because the mean of its divisors is an integer number (35271535).

Almost surely, 2^70543069 is an apocalyptic number.

It is an amenable number.

70543069 is a deficient number, since it is larger than the sum of its proper divisors (1).

70543069 is an equidigital number, since it uses as much as digits as its factorization.

70543069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 70543069 is about 8398.9921419180. The cubic root of 70543069 is about 413.1915676821.

The spelling of 70543069 in words is "seventy million, five hundred forty-three thousand, sixty-nine".