164146651 has 4 divisors (see below), whose sum is σ = 164869992. Its totient is φ = 163423312.

The previous prime is 164146613. The next prime is 164146663. The reversal of 164146651 is 156641461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156641461 = 37 ⋅4233553.

It is a cyclic number.

It is not a de Polignac number, because 164146651 - 2²⁵ = 130592219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164146751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361330 + ... + 361783.

It is an arithmetic number, because the mean of its divisors is an integer number (41217498).

Almost surely, 2^164146651 is an apocalyptic number.

164146651 is a deficient number, since it is larger than the sum of its proper divisors (723341).

164146651 is an equidigital number, since it uses as much as digits as its factorization.

164146651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723340.

The product of its digits is 17280, while the sum is 34.

The square root of 164146651 is about 12811.9729550136. The cubic root of 164146651 is about 547.5334741806.

The spelling of 164146651 in words is "one hundred sixty-four million, one hundred forty-six thousand, six hundred fifty-one".