164335137 has 4 divisors (see below), whose sum is σ = 219113520. Its totient is φ = 109556756.

The previous prime is 164335117. The next prime is 164335151. The reversal of 164335137 is 731533461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731533461 = 3 ⋅243844487.

It is a cyclic number.

It is not a de Polignac number, because 164335137 - 2¹⁰ = 164334113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164335098 and 164335107.

It is not an unprimeable number, because it can be changed into a prime (164335117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27389187 + ... + 27389192.

It is an arithmetic number, because the mean of its divisors is an integer number (54778380).

Almost surely, 2^164335137 is an apocalyptic number.

It is an amenable number.

164335137 is a deficient number, since it is larger than the sum of its proper divisors (54778383).

164335137 is an equidigital number, since it uses as much as digits as its factorization.

164335137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54778382.

The product of its digits is 22680, while the sum is 33.

The square root of 164335137 is about 12819.3266983879. The cubic root of 164335137 is about 547.7429675762.

Adding to 164335137 its reverse (731533461), we get a palindrome (895868598).

The spelling of 164335137 in words is "one hundred sixty-four million, three hundred thirty-five thousand, one hundred thirty-seven".