164012623 has 2 divisors, whose sum is σ = 164012624. Its totient is φ = 164012622.

The previous prime is 164012561. The next prime is 164012659. The reversal of 164012623 is 326210461.

164012623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164012623 - 2⁹ = 164012111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164012663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82006311 + 82006312.

It is an arithmetic number, because the mean of its divisors is an integer number (82006312).

Almost surely, 2^164012623 is an apocalyptic number.

164012623 is a deficient number, since it is larger than the sum of its proper divisors (1).

164012623 is an equidigital number, since it uses as much as digits as its factorization.

164012623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 164012623 is about 12806.7413107316. The cubic root of 164012623 is about 547.3844107296.

The spelling of 164012623 in words is "one hundred sixty-four million, twelve thousand, six hundred twenty-three".