164730437 has 12 divisors (see below), whose sum is σ = 176332896. Its totient is φ = 153838440.

The previous prime is 164730403. The next prime is 164730457. The reversal of 164730437 is 734037461.

It is a de Polignac number, because none of the positive numbers 2^k-164730437 is a prime.

It is a super-2 number, since 2×164730437² = 54272233748421938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164730397 and 164730406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164730457) 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 11 ways as a sum of consecutive naturals, for example, 22418 + ... + 28844.

It is an arithmetic number, because the mean of its divisors is an integer number (14694408).

Almost surely, 2^164730437 is an apocalyptic number.

It is an amenable number.

164730437 is a deficient number, since it is larger than the sum of its proper divisors (11602459).

164730437 is an equidigital number, since it uses as much as digits as its factorization.

164730437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536 (or 6517 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 164730437 is about 12834.7355640855. The cubic root of 164730437 is about 548.1818053867.

Adding to 164730437 its reverse (734037461), we get a palindrome (898767898).

The spelling of 164730437 in words is "one hundred sixty-four million, seven hundred thirty thousand, four hundred thirty-seven".