70128041 has 2 divisors, whose sum is σ = 70128042. Its totient is φ = 70128040.

The previous prime is 70128017. The next prime is 70128053. The reversal of 70128041 is 14082107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54096025 + 16032016 = 7355^2 + 4004^2 .

It is a cyclic number.

It is not a de Polignac number, because 70128041 - 2¹⁸ = 69865897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70127998 and 70128016.

It is not a weakly prime, because it can be changed into another prime (70128011) 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, 35064020 + 35064021.

It is an arithmetic number, because the mean of its divisors is an integer number (35064021).

Almost surely, 2^70128041 is an apocalyptic number.

It is an amenable number.

70128041 is a deficient number, since it is larger than the sum of its proper divisors (1).

70128041 is an equidigital number, since it uses as much as digits as its factorization.

70128041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 70128041 is about 8374.2486827178. The cubic root of 70128041 is about 412.3796595394.

The spelling of 70128041 in words is "seventy million, one hundred twenty-eight thousand, forty-one".