164703081 has 4 divisors (see below), whose sum is σ = 219604112. Its totient is φ = 109802052.

The previous prime is 164703061. The next prime is 164703083. The reversal of 164703081 is 180307461.

It is a happy number.

164703081 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 164703081 - 2⁶ = 164703017 is a prime.

It is a super-2 number, since 2×164703081² = 54254209781785122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164703083) 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, 27450511 + ... + 27450516.

It is an arithmetic number, because the mean of its divisors is an integer number (54901028).

Almost surely, 2^164703081 is an apocalyptic number.

It is an amenable number.

164703081 is a deficient number, since it is larger than the sum of its proper divisors (54901031).

164703081 is an equidigital number, since it uses as much as digits as its factorization.

164703081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54901030.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 164703081 is about 12833.6698180996. The cubic root of 164703081 is about 548.1514590586.

The spelling of 164703081 in words is "one hundred sixty-four million, seven hundred three thousand, eighty-one".