164555047 has 2 divisors, whose sum is σ = 164555048. Its totient is φ = 164555046.

The previous prime is 164554993. The next prime is 164555051. The reversal of 164555047 is 740555461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164555047 - 2⁷ = 164554919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164554997 and 164555015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164555647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82277523 + 82277524.

It is an arithmetic number, because the mean of its divisors is an integer number (82277524).

Almost surely, 2^164555047 is an apocalyptic number.

164555047 is a deficient number, since it is larger than the sum of its proper divisors (1).

164555047 is an equidigital number, since it uses as much as digits as its factorization.

164555047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 164555047 is about 12827.9011143679. The cubic root of 164555047 is about 547.9871849082.

The spelling of 164555047 in words is "one hundred sixty-four million, five hundred fifty-five thousand, forty-seven".