164000015 has 4 divisors (see below), whose sum is σ = 196800024. Its totient is φ = 131200008.

The previous prime is 163999991. The next prime is 164000047. The reversal of 164000015 is 510000461.

It is a happy number.

164000015 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 an emirpimes, since its reverse is a distinct semiprime: 510000461 = 8641 ⋅59021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164000015 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163999957 and 164000002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16399997 + ... + 16400006.

It is an arithmetic number, because the mean of its divisors is an integer number (49200006).

Almost surely, 2^164000015 is an apocalyptic number.

164000015 is a deficient number, since it is larger than the sum of its proper divisors (32800009).

164000015 is an equidigital number, since it uses as much as digits as its factorization.

164000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32800008.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 164000015 is about 12806.2490605173. The cubic root of 164000015 is about 547.3703841680.

Adding to 164000015 its reverse (510000461), we get a palindrome (674000476).

The spelling of 164000015 in words is "one hundred sixty-four million, fifteen", and thus it is an aban number.