164152447 has 4 divisors (see below), whose sum is σ = 164182896. Its totient is φ = 164122000.

The previous prime is 164152423. The next prime is 164152463. The reversal of 164152447 is 744251461.

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 164152447 - 2⁷ = 164152319 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 (164152477) 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, 4723 + ... + 18724.

It is an arithmetic number, because the mean of its divisors is an integer number (41045724).

Almost surely, 2^164152447 is an apocalyptic number.

164152447 is a deficient number, since it is larger than the sum of its proper divisors (30449).

164152447 is an equidigital number, since it uses as much as digits as its factorization.

164152447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30448.

The product of its digits is 26880, while the sum is 34.

The square root of 164152447 is about 12812.1991476873. The cubic root of 164152447 is about 547.5399185534.

The spelling of 164152447 in words is "one hundred sixty-four million, one hundred fifty-two thousand, four hundred forty-seven".