164002909 has 8 divisors (see below), whose sum is σ = 187724160. Its totient is φ = 140354736.

The previous prime is 164002879. The next prime is 164002913. The reversal of 164002909 is 909200461.

It is a happy number.

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 164002909 - 2⁷ = 164002781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164002999) 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, 13369 + ... + 22510.

It is an arithmetic number, because the mean of its divisors is an integer number (23465520).

Almost surely, 2^164002909 is an apocalyptic number.

It is an amenable number.

164002909 is a deficient number, since it is larger than the sum of its proper divisors (23721251).

164002909 is an equidigital number, since it uses as much as digits as its factorization.

164002909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36539.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 164002909 is about 12806.3620517304. The cubic root of 164002909 is about 547.3736038436.

The spelling of 164002909 in words is "one hundred sixty-four million, two thousand, nine hundred nine".