164373903 has 6 divisors (see below), whose sum is σ = 237428984. Its totient is φ = 109582596.

The previous prime is 164373887. The next prime is 164373917. The reversal of 164373903 is 309373461.

164373903 is a `hidden beast` number, since 1 + 643 + 7 + 3 + 9 + 0 + 3 = 666.

164373903 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 164373903 - 2⁴ = 164373887 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 (164373103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9131875 + ... + 9131892.

Almost surely, 2^164373903 is an apocalyptic number.

164373903 is a deficient number, since it is larger than the sum of its proper divisors (73055081).

164373903 is a wasteful number, since it uses less digits than its factorization.

164373903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18263773 (or 18263770 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 164373903 is about 12820.8386231167. The cubic root of 164373903 is about 547.7860343134.

The spelling of 164373903 in words is "one hundred sixty-four million, three hundred seventy-three thousand, nine hundred three".