171214481 has 4 divisors (see below), whose sum is σ = 171246372. Its totient is φ = 171182592.

The previous prime is 171214471. The next prime is 171214489. The reversal of 171214481 is 184412171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184412171 = 953 ⋅193507.

It can be written as a sum of positive squares in 2 ways, for example, as 29604481 + 141610000 = 5441^2 + 11900^2 .

It is a cyclic number.

It is not a de Polignac number, because 171214481 - 2²² = 167020177 is a prime.

It is a super-2 number, since 2×171214481² = 58628797008198722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171214489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5696 + ... + 19361.

It is an arithmetic number, because the mean of its divisors is an integer number (42811593).

Almost surely, 2^171214481 is an apocalyptic number.

It is an amenable number.

171214481 is a deficient number, since it is larger than the sum of its proper divisors (31891).

171214481 is an equidigital number, since it uses as much as digits as its factorization.

171214481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31890.

The product of its digits is 1792, while the sum is 29.

The square root of 171214481 is about 13084.8951466949. The cubic root of 171214481 is about 555.2818750507.

The spelling of 171214481 in words is "one hundred seventy-one million, two hundred fourteen thousand, four hundred eighty-one".