171448973 has 2 divisors, whose sum is σ = 171448974. Its totient is φ = 171448972.

The previous prime is 171448967. The next prime is 171448993. The reversal of 171448973 is 379844171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171138724 + 310249 = 13082^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 171448973 - 2⁶ = 171448909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171448933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85724486 + 85724487.

It is an arithmetic number, because the mean of its divisors is an integer number (85724487).

Almost surely, 2^171448973 is an apocalyptic number.

It is an amenable number.

171448973 is a deficient number, since it is larger than the sum of its proper divisors (1).

171448973 is an equidigital number, since it uses as much as digits as its factorization.

171448973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 171448973 is about 13093.8524888590. The cubic root of 171448973 is about 555.5352604690.

The spelling of 171448973 in words is "one hundred seventy-one million, four hundred forty-eight thousand, nine hundred seventy-three".