173072071 has 2 divisors, whose sum is σ = 173072072. Its totient is φ = 173072070.

The previous prime is 173072047. The next prime is 173072113. The reversal of 173072071 is 170270371.

It is a weak prime.

It is an emirp because it is prime and its reverse (170270371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173072071 - 2²¹ = 170974919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173072021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86536035 + 86536036.

It is an arithmetic number, because the mean of its divisors is an integer number (86536036).

Almost surely, 2^173072071 is an apocalyptic number.

173072071 is a deficient number, since it is larger than the sum of its proper divisors (1).

173072071 is an equidigital number, since it uses as much as digits as its factorization.

173072071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 173072071 is about 13155.6858810174. The cubic root of 173072071 is about 557.2828312186.

The spelling of 173072071 in words is "one hundred seventy-three million, seventy-two thousand, seventy-one".