164672903 has 8 divisors (see below), whose sum is σ = 169299120. Its totient is φ = 160173000.

The previous prime is 164672857. The next prime is 164672909. The reversal of 164672903 is 309276461.

164672903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164672903 - 2⁶ = 164672839 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 (164672909) 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, 49028 + ... + 52278.

It is an arithmetic number, because the mean of its divisors is an integer number (21162390).

Almost surely, 2^164672903 is an apocalyptic number.

164672903 is a deficient number, since it is larger than the sum of its proper divisors (4626217).

164672903 is an frugal number, since it uses more digits than its factorization.

164672903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362 (or 3288 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 164672903 is about 12832.4940288317. The cubic root of 164672903 is about 548.1179783549.

The spelling of 164672903 in words is "one hundred sixty-four million, six hundred seventy-two thousand, nine hundred three".