70641041 has 2 divisors, whose sum is σ = 70641042. Its totient is φ = 70641040.

The previous prime is 70641037. The next prime is 70641059. The reversal of 70641041 is 14014607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70492816 + 148225 = 8396^2 + 385^2 .

It is an emirp because it is prime and its reverse (14014607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70641041 - 2² = 70641037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70640998 and 70641016.

It is not a weakly prime, because it can be changed into another prime (70641061) 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, 35320520 + 35320521.

It is an arithmetic number, because the mean of its divisors is an integer number (35320521).

Almost surely, 2^70641041 is an apocalyptic number.

It is an amenable number.

70641041 is a deficient number, since it is larger than the sum of its proper divisors (1).

70641041 is an equidigital number, since it uses as much as digits as its factorization.

70641041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 70641041 is about 8404.8224847405. The cubic root of 70641041 is about 413.3827628336.

Adding to 70641041 its reverse (14014607), we get a palindrome (84655648).

The spelling of 70641041 in words is "seventy million, six hundred forty-one thousand, forty-one".