164743506 has 12 divisors (see below), whose sum is σ = 356944302. Its totient is φ = 54914496.

The previous prime is 164743483. The next prime is 164743529. The reversal of 164743506 is 605347461.

It is a happy number.

164743506 is a `hidden beast` number, since 1 + 647 + 4 + 3 + 5 + 0 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (164743483) and next prime (164743529).

It can be written as a sum of positive squares in only one way, i.e., 162945225 + 1798281 = 12765^2 + 1341^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4576191 + ... + 4576226.

Almost surely, 2^164743506 is an apocalyptic number.

164743506 is an abundant number, since it is smaller than the sum of its proper divisors (192200796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164743506 is a wasteful number, since it uses less digits than its factorization.

164743506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152425 (or 9152422 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 164743506 is about 12835.2446801765. The cubic root of 164743506 is about 548.1963017941.

The spelling of 164743506 in words is "one hundred sixty-four million, seven hundred forty-three thousand, five hundred six".