164228357 has 4 divisors (see below), whose sum is σ = 164256780. Its totient is φ = 164199936.

The previous prime is 164228353. The next prime is 164228369. The reversal of 164228357 is 753822461.

It is a happy number.

164228357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 144744961 = 4414^2 + 12031^2 .

It is a cyclic number.

It is not a de Polignac number, because 164228357 - 2² = 164228353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164228357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164228353) 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, 2108 + ... + 18245.

It is an arithmetic number, because the mean of its divisors is an integer number (41064195).

Almost surely, 2^164228357 is an apocalyptic number.

It is an amenable number.

164228357 is a deficient number, since it is larger than the sum of its proper divisors (28423).

164228357 is an equidigital number, since it uses as much as digits as its factorization.

164228357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28422.

The product of its digits is 80640, while the sum is 38.

The square root of 164228357 is about 12815.1612163094. The cubic root of 164228357 is about 547.6243062689.

The spelling of 164228357 in words is "one hundred sixty-four million, two hundred twenty-eight thousand, three hundred fifty-seven".