70223147 has 2 divisors, whose sum is σ = 70223148. Its totient is φ = 70223146.

The previous prime is 70223099. The next prime is 70223149. The reversal of 70223147 is 74132207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70223147 - 2¹⁶ = 70157611 is a prime.

Together with 70223149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70223149) 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, 35111573 + 35111574.

It is an arithmetic number, because the mean of its divisors is an integer number (35111574).

Almost surely, 2^70223147 is an apocalyptic number.

70223147 is a deficient number, since it is larger than the sum of its proper divisors (1).

70223147 is an equidigital number, since it uses as much as digits as its factorization.

70223147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 70223147 is about 8379.9252383300. The cubic root of 70223147 is about 412.5659951955.

The spelling of 70223147 in words is "seventy million, two hundred twenty-three thousand, one hundred forty-seven".