164157471 has 12 divisors (see below), whose sum is σ = 238824040. Its totient is φ = 108650160.

The previous prime is 164157449. The next prime is 164157517. The reversal of 164157471 is 174751461.

164157471 is a `hidden beast` number, since 1 + 641 + 5 + 7 + 4 + 7 + 1 = 666.

164157471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164157471 - 2⁵ = 164157439 is a prime.

It is a super-3 number, since 3×164157471³ (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 (164157871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64360 + ... + 66861.

Almost surely, 2^164157471 is an apocalyptic number.

164157471 is a deficient number, since it is larger than the sum of its proper divisors (74666569).

164157471 is a wasteful number, since it uses less digits than its factorization.

164157471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131366 (or 131363 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 164157471 is about 12812.3952093276. The cubic root of 164157471 is about 547.5455044433.

The spelling of 164157471 in words is "one hundred sixty-four million, one hundred fifty-seven thousand, four hundred seventy-one".