70136089 has 2 divisors, whose sum is σ = 70136090. Its totient is φ = 70136088.

The previous prime is 70136083. The next prime is 70136093. The reversal of 70136089 is 98063107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37417689 + 32718400 = 6117^2 + 5720^2 .

It is a cyclic number.

It is not a de Polignac number, because 70136089 - 2⁵ = 70136057 is a prime.

It is not a weakly prime, because it can be changed into another prime (70136083) 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, 35068044 + 35068045.

It is an arithmetic number, because the mean of its divisors is an integer number (35068045).

Almost surely, 2^70136089 is an apocalyptic number.

It is an amenable number.

70136089 is a deficient number, since it is larger than the sum of its proper divisors (1).

70136089 is an equidigital number, since it uses as much as digits as its factorization.

70136089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 70136089 is about 8374.7291896514. The cubic root of 70136089 is about 412.3954340403.

The spelling of 70136089 in words is "seventy million, one hundred thirty-six thousand, eighty-nine".