164081503 has 2 divisors, whose sum is σ = 164081504. Its totient is φ = 164081502.

The previous prime is 164081479. The next prime is 164081509. The reversal of 164081503 is 305180461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164081503 is a prime.

It is equal to p_9190450 and since 164081503 and 9190450 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164081509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82040751 + 82040752.

It is an arithmetic number, because the mean of its divisors is an integer number (82040752).

Almost surely, 2^164081503 is an apocalyptic number.

164081503 is a deficient number, since it is larger than the sum of its proper divisors (1).

164081503 is an equidigital number, since it uses as much as digits as its factorization.

164081503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 164081503 is about 12809.4302371339. The cubic root of 164081503 is about 547.4610279245.

The spelling of 164081503 in words is "one hundred sixty-four million, eighty-one thousand, five hundred three".