164984881 has 8 divisors (see below), whose sum is σ = 174834504. Its totient is φ = 155151360.

The previous prime is 164984879. The next prime is 164984903. The reversal of 164984881 is 188489461.

164984881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 27720225 + 137264656 = 5265^2 + 11716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164984881 - 2¹ = 164984879 is a prime.

It is a super-2 number, since 2×164984881² = 54440021917168322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164984381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21901 + ... + 28453.

It is an arithmetic number, because the mean of its divisors is an integer number (21854313).

Almost surely, 2^164984881 is an apocalyptic number.

It is an amenable number.

164984881 is a deficient number, since it is larger than the sum of its proper divisors (9849623).

164984881 is a wasteful number, since it uses less digits than its factorization.

164984881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051.

The product of its digits is 442368, while the sum is 49.

The square root of 164984881 is about 12844.6440589064. The cubic root of 164984881 is about 548.4639022487.

The spelling of 164984881 in words is "one hundred sixty-four million, nine hundred eighty-four thousand, eight hundred eighty-one".