171422027 has 4 divisors (see below), whose sum is σ = 195910896. Its totient is φ = 146933160.

The previous prime is 171421949. The next prime is 171422029. The reversal of 171422027 is 720224171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720224171 = 10427 ⋅69073.

It is a cyclic number.

It is not a de Polignac number, because 171422027 - 2⁸ = 171421771 is a prime.

It is a super-2 number, since 2×171422027² = 58771022681577458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171421987 and 171422005.

It is not an unprimeable number, because it can be changed into a prime (171422029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12244424 + ... + 12244437.

It is an arithmetic number, because the mean of its divisors is an integer number (48977724).

Almost surely, 2^171422027 is an apocalyptic number.

171422027 is a deficient number, since it is larger than the sum of its proper divisors (24488869).

171422027 is an equidigital number, since it uses as much as digits as its factorization.

171422027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24488868.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 171422027 is about 13092.8234922800. The cubic root of 171422027 is about 555.5061551378.

Adding to 171422027 its reverse (720224171), we get a palindrome (891646198).

The spelling of 171422027 in words is "one hundred seventy-one million, four hundred twenty-two thousand, twenty-seven".