164503071 has 12 divisors (see below), whose sum is σ = 238257448. Its totient is φ = 109372464.

The previous prime is 164503063. The next prime is 164503099. The reversal of 164503071 is 170305461.

It is not a de Polignac number, because 164503071 - 2³ = 164503063 is a prime.

It is a super-2 number, since 2×164503071² = 54122520736862082, which contains 22 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 (164503771) 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, 21145 + ... + 27858.

Almost surely, 2^164503071 is an apocalyptic number.

164503071 is a deficient number, since it is larger than the sum of its proper divisors (73754377).

164503071 is a wasteful number, since it uses less digits than its factorization.

164503071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49382 (or 49379 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 164503071 is about 12825.8750578664. The cubic root of 164503071 is about 547.9294834850.

The spelling of 164503071 in words is "one hundred sixty-four million, five hundred three thousand, seventy-one".