168401471 has 4 divisors (see below), whose sum is σ = 192458832. Its totient is φ = 144344112.

The previous prime is 168401461. The next prime is 168401479. The reversal of 168401471 is 174104861.

168401471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168401471 - 2⁶ = 168401407 is a prime.

It is a super-3 number, since 3×168401471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168401479) 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, 12028670 + ... + 12028683.

It is an arithmetic number, because the mean of its divisors is an integer number (48114708).

Almost surely, 2^168401471 is an apocalyptic number.

168401471 is a deficient number, since it is larger than the sum of its proper divisors (24057361).

168401471 is an equidigital number, since it uses as much as digits as its factorization.

168401471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24057360.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 168401471 is about 12976.9592355066. The cubic root of 168401471 is about 552.2240205599.

The spelling of 168401471 in words is "one hundred sixty-eight million, four hundred one thousand, four hundred seventy-one".