70163173 has 2 divisors, whose sum is σ = 70163174. Its totient is φ = 70163172.

The previous prime is 70163141. The next prime is 70163183. The reversal of 70163173 is 37136107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61121124 + 9042049 = 7818^2 + 3007^2 .

It is a cyclic number.

It is not a de Polignac number, because 70163173 - 2⁵ = 70163141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70163113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35081586 + 35081587.

It is an arithmetic number, because the mean of its divisors is an integer number (35081587).

Almost surely, 2^70163173 is an apocalyptic number.

It is an amenable number.

70163173 is a deficient number, since it is larger than the sum of its proper divisors (1).

70163173 is an equidigital number, since it uses as much as digits as its factorization.

70163173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 70163173 is about 8376.3460410850. The cubic root of 70163173 is about 412.4485112348.

The spelling of 70163173 in words is "seventy million, one hundred sixty-three thousand, one hundred seventy-three".