164801447 has 4 divisors (see below), whose sum is σ = 164953320. Its totient is φ = 164649576.

The previous prime is 164801431. The next prime is 164801473. The reversal of 164801447 is 744108461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164801447 - 2⁴ = 164801431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164801477) 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, 74297 + ... + 76482.

It is an arithmetic number, because the mean of its divisors is an integer number (41238330).

Almost surely, 2^164801447 is an apocalyptic number.

164801447 is a deficient number, since it is larger than the sum of its proper divisors (151873).

164801447 is a wasteful number, since it uses less digits than its factorization.

164801447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151872.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 164801447 is about 12837.5015871469. The cubic root of 164801447 is about 548.2605619273.

The spelling of 164801447 in words is "one hundred sixty-four million, eight hundred one thousand, four hundred forty-seven".