164312093 has 4 divisors (see below), whose sum is σ = 179249568. Its totient is φ = 149374620.

The previous prime is 164312087. The next prime is 164312117. The reversal of 164312093 is 390213461.

164312093 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164312093 - 2⁴ = 164312077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164312003) 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, 7468721 + ... + 7468742.

It is an arithmetic number, because the mean of its divisors is an integer number (44812392).

Almost surely, 2^164312093 is an apocalyptic number.

It is an amenable number.

164312093 is a deficient number, since it is larger than the sum of its proper divisors (14937475).

164312093 is a wasteful number, since it uses less digits than its factorization.

164312093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14937474.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 164312093 is about 12818.4278677223. The cubic root of 164312093 is about 547.7173638431.

The spelling of 164312093 in words is "one hundred sixty-four million, three hundred twelve thousand, ninety-three".