167273009 has 2 divisors, whose sum is σ = 167273010. Its totient is φ = 167273008.

The previous prime is 167272991. The next prime is 167273021. The reversal of 167273009 is 900372761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100801600 + 66471409 = 10040^2 + 8153^2 .

It is a cyclic number.

It is not a de Polignac number, because 167273009 - 2¹⁶ = 167207473 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 167273009.

It is not a weakly prime, because it can be changed into another prime (167273059) 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, 83636504 + 83636505.

It is an arithmetic number, because the mean of its divisors is an integer number (83636505).

Almost surely, 2^167273009 is an apocalyptic number.

It is an amenable number.

167273009 is a deficient number, since it is larger than the sum of its proper divisors (1).

167273009 is an equidigital number, since it uses as much as digits as its factorization.

167273009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 167273009 is about 12933.4067051183. The cubic root of 167273009 is about 550.9877665671.

The spelling of 167273009 in words is "one hundred sixty-seven million, two hundred seventy-three thousand, nine".