167481217 has 2 divisors, whose sum is σ = 167481218. Its totient is φ = 167481216.

The previous prime is 167481191. The next prime is 167481221. The reversal of 167481217 is 712184761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166126321 + 1354896 = 12889^2 + 1164^2 .

It is a cyclic number.

It is not a de Polignac number, because 167481217 - 2⁷ = 167481089 is a prime.

It is a super-3 number, since 3×167481217³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (167481247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83740608 + 83740609.

It is an arithmetic number, because the mean of its divisors is an integer number (83740609).

Almost surely, 2^167481217 is an apocalyptic number.

It is an amenable number.

167481217 is a deficient number, since it is larger than the sum of its proper divisors (1).

167481217 is an equidigital number, since it uses as much as digits as its factorization.

167481217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 37.

The square root of 167481217 is about 12941.4534346031. The cubic root of 167481217 is about 551.2162802135.

The spelling of 167481217 in words is "one hundred sixty-seven million, four hundred eighty-one thousand, two hundred seventeen".