164362637 has 2 divisors, whose sum is σ = 164362638. Its totient is φ = 164362636.

The previous prime is 164362607. The next prime is 164362643. The reversal of 164362637 is 736263461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101223721 + 63138916 = 10061^2 + 7946^2 .

It is a cyclic number.

It is not a de Polignac number, because 164362637 - 2¹² = 164358541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164362637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164362607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82181318 + 82181319.

It is an arithmetic number, because the mean of its divisors is an integer number (82181319).

Almost surely, 2^164362637 is an apocalyptic number.

It is an amenable number.

164362637 is a deficient number, since it is larger than the sum of its proper divisors (1).

164362637 is an equidigital number, since it uses as much as digits as its factorization.

164362637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 38.

The square root of 164362637 is about 12820.3992527534. The cubic root of 164362637 is about 547.7735191506.

The spelling of 164362637 in words is "one hundred sixty-four million, three hundred sixty-two thousand, six hundred thirty-seven".