70518841 has 2 divisors, whose sum is σ = 70518842. Its totient is φ = 70518840.

The previous prime is 70518827. The next prime is 70518871. The reversal of 70518841 is 14881507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 19324816 = 7155^2 + 4396^2 .

It is an emirp because it is prime and its reverse (14881507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70518841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70518797 and 70518806.

It is not a weakly prime, because it can be changed into another prime (70518871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35259420 + 35259421.

It is an arithmetic number, because the mean of its divisors is an integer number (35259421).

Almost surely, 2^70518841 is an apocalyptic number.

It is an amenable number.

70518841 is a deficient number, since it is larger than the sum of its proper divisors (1).

70518841 is an equidigital number, since it uses as much as digits as its factorization.

70518841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 70518841 is about 8397.5497021453. The cubic root of 70518841 is about 413.1442587510.

The spelling of 70518841 in words is "seventy million, five hundred eighteen thousand, eight hundred forty-one".