164352637 has 2 divisors, whose sum is σ = 164352638. Its totient is φ = 164352636.

The previous prime is 164352593. The next prime is 164352697. The reversal of 164352637 is 736253461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88906041 + 75446596 = 9429^2 + 8686^2 .

It is an emirp because it is prime and its reverse (736253461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164352637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164352596 and 164352605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164352697) 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, 82176318 + 82176319.

It is an arithmetic number, because the mean of its divisors is an integer number (82176319).

Almost surely, 2^164352637 is an apocalyptic number.

It is an amenable number.

164352637 is a deficient number, since it is larger than the sum of its proper divisors (1).

164352637 is an equidigital number, since it uses as much as digits as its factorization.

164352637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 164352637 is about 12820.0092433664. The cubic root of 164352637 is about 547.7624098815.

The spelling of 164352637 in words is "one hundred sixty-four million, three hundred fifty-two thousand, six hundred thirty-seven".