164450903 has 16 divisors (see below), whose sum is σ = 172769280. Its totient is φ = 156383136.

The previous prime is 164450893. The next prime is 164450941. The reversal of 164450903 is 309054461.

It is a cyclic number.

It is not a de Polignac number, because 164450903 - 2⁴ = 164450887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164450903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164450983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371000 + ... + 371442.

It is an arithmetic number, because the mean of its divisors is an integer number (10798080).

Almost surely, 2^164450903 is an apocalyptic number.

164450903 is a deficient number, since it is larger than the sum of its proper divisors (8318377).

164450903 is a wasteful number, since it uses less digits than its factorization.

164450903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 164450903 is about 12823.8411952114. The cubic root of 164450903 is about 547.8715566891.

The spelling of 164450903 in words is "one hundred sixty-four million, four hundred fifty thousand, nine hundred three".