70148789 has 2 divisors, whose sum is σ = 70148790. Its totient is φ = 70148788.

The previous prime is 70148777. The next prime is 70148807. The reversal of 70148789 is 98784107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51008164 + 19140625 = 7142^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 70148789 - 2⁴ = 70148773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70948789) 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, 35074394 + 35074395.

It is an arithmetic number, because the mean of its divisors is an integer number (35074395).

Almost surely, 2^70148789 is an apocalyptic number.

It is an amenable number.

70148789 is a deficient number, since it is larger than the sum of its proper divisors (1).

70148789 is an equidigital number, since it uses as much as digits as its factorization.

70148789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 70148789 is about 8375.4873888031. The cubic root of 70148789 is about 412.4203242502.

The spelling of 70148789 in words is "seventy million, one hundred forty-eight thousand, seven hundred eighty-nine".