164754909 has 24 divisors (see below), whose sum is σ = 273280800. Its totient is φ = 94595040.

The previous prime is 164754883. The next prime is 164754923. The reversal of 164754909 is 909457461.

It is not a de Polignac number, because 164754909 - 2⁷ = 164754781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164754949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41914 + ... + 45675.

It is an arithmetic number, because the mean of its divisors is an integer number (11386700).

Almost surely, 2^164754909 is an apocalyptic number.

164754909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

164754909 is a deficient number, since it is larger than the sum of its proper divisors (108525891).

164754909 is a wasteful number, since it uses less digits than its factorization.

164754909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87625 (or 87622 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 164754909 is about 12835.6888790590. The cubic root of 164754909 is about 548.2089496132.

The spelling of 164754909 in words is "one hundred sixty-four million, seven hundred fifty-four thousand, nine hundred nine".