164623603 has 2 divisors, whose sum is σ = 164623604. Its totient is φ = 164623602.

The previous prime is 164623579. The next prime is 164623607. The reversal of 164623603 is 306326461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164623603 is a prime.

It is not a weakly prime, because it can be changed into another prime (164623607) 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, 82311801 + 82311802.

It is an arithmetic number, because the mean of its divisors is an integer number (82311802).

Almost surely, 2^164623603 is an apocalyptic number.

164623603 is a deficient number, since it is larger than the sum of its proper divisors (1).

164623603 is an equidigital number, since it uses as much as digits as its factorization.

164623603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 164623603 is about 12830.5729801907. The cubic root of 164623603 is about 548.0632741242.

The spelling of 164623603 in words is "one hundred sixty-four million, six hundred twenty-three thousand, six hundred three".