171480469 has 2 divisors, whose sum is σ = 171480470. Its totient is φ = 171480468.

The previous prime is 171480391. The next prime is 171480503. The reversal of 171480469 is 964084171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171479025 + 1444 = 13095^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 171480469 - 2¹³ = 171472277 is a prime.

It is a super-2 number, since 2×171480469² = 58811102496919922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171489469) 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, 85740234 + 85740235.

It is an arithmetic number, because the mean of its divisors is an integer number (85740235).

Almost surely, 2^171480469 is an apocalyptic number.

It is an amenable number.

171480469 is a deficient number, since it is larger than the sum of its proper divisors (1).

171480469 is an equidigital number, since it uses as much as digits as its factorization.

171480469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 171480469 is about 13095.0551354318. The cubic root of 171480469 is about 555.5692765515.

The spelling of 171480469 in words is "one hundred seventy-one million, four hundred eighty thousand, four hundred sixty-nine".