164137553 has 2 divisors, whose sum is σ = 164137554. Its totient is φ = 164137552.

The previous prime is 164137517. The next prime is 164137619. The reversal of 164137553 is 355731461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147064129 + 17073424 = 12127^2 + 4132^2 .

It is an emirp because it is prime and its reverse (355731461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164137553 - 2¹⁰ = 164136529 is a prime.

It is a super-2 number, since 2×164137553² = 53882272609655618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164131553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82068776 + 82068777.

It is an arithmetic number, because the mean of its divisors is an integer number (82068777).

Almost surely, 2^164137553 is an apocalyptic number.

It is an amenable number.

164137553 is a deficient number, since it is larger than the sum of its proper divisors (1).

164137553 is an equidigital number, since it uses as much as digits as its factorization.

164137553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 164137553 is about 12811.6178915857. The cubic root of 164137553 is about 547.5233581216.

The spelling of 164137553 in words is "one hundred sixty-four million, one hundred thirty-seven thousand, five hundred fifty-three".