164455547 has 2 divisors, whose sum is σ = 164455548. Its totient is φ = 164455546.

The previous prime is 164455483. The next prime is 164455553. The reversal of 164455547 is 745554461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164455547 - 2⁶ = 164455483 is a prime.

It is not a weakly prime, because it can be changed into another prime (164455847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82227773 + 82227774.

It is an arithmetic number, because the mean of its divisors is an integer number (82227774).

Almost surely, 2^164455547 is an apocalyptic number.

164455547 is a deficient number, since it is larger than the sum of its proper divisors (1).

164455547 is an equidigital number, since it uses as much as digits as its factorization.

164455547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 41.

The square root of 164455547 is about 12824.0222629252. The cubic root of 164455547 is about 547.8767138343.

The spelling of 164455547 in words is "one hundred sixty-four million, four hundred fifty-five thousand, five hundred forty-seven".