164213387 has 8 divisors (see below), whose sum is σ = 187248096. Its totient is φ = 142664832.

The previous prime is 164213383. The next prime is 164213419. The reversal of 164213387 is 783312461.

164213387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164213387 - 2² = 164213383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164213383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371303 + ... + 371744.

It is an arithmetic number, because the mean of its divisors is an integer number (23406012).

Almost surely, 2^164213387 is an apocalyptic number.

164213387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164213387 is a deficient number, since it is larger than the sum of its proper divisors (23034709).

164213387 is a wasteful number, since it uses less digits than its factorization.

164213387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743077.

The product of its digits is 24192, while the sum is 35.

The square root of 164213387 is about 12814.5771291916. The cubic root of 164213387 is about 547.6076664610.

The spelling of 164213387 in words is "one hundred sixty-four million, two hundred thirteen thousand, three hundred eighty-seven".