164099523 has 32 divisors (see below), whose sum is σ = 271728640. Its totient is φ = 85963680.

The previous prime is 164099519. The next prime is 164099543. The reversal of 164099523 is 325990461.

It is not a de Polignac number, because 164099523 - 2² = 164099519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164099543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5736 + ... + 19002.

It is an arithmetic number, because the mean of its divisors is an integer number (8491520).

Almost surely, 2^164099523 is an apocalyptic number.

164099523 is a deficient number, since it is larger than the sum of its proper divisors (107629117).

164099523 is a wasteful number, since it uses less digits than its factorization.

164099523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 164099523 is about 12810.1336058606. The cubic root of 164099523 is about 547.4810685475.

The spelling of 164099523 in words is "one hundred sixty-four million, ninety-nine thousand, five hundred twenty-three".