70144667 has 2 divisors, whose sum is σ = 70144668. Its totient is φ = 70144666.

The previous prime is 70144639. The next prime is 70144673. The reversal of 70144667 is 76644107.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70144667 - 2¹⁶ = 70079131 is a prime.

It is not a weakly prime, because it can be changed into another prime (70144367) 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, 35072333 + 35072334.

It is an arithmetic number, because the mean of its divisors is an integer number (35072334).

Almost surely, 2^70144667 is an apocalyptic number.

70144667 is a deficient number, since it is larger than the sum of its proper divisors (1).

70144667 is an equidigital number, since it uses as much as digits as its factorization.

70144667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70144667 is about 8375.2413099564. The cubic root of 70144667 is about 412.4122460405.

The spelling of 70144667 in words is "seventy million, one hundred forty-four thousand, six hundred sixty-seven".