164523115 has 4 divisors (see below), whose sum is σ = 197427744. Its totient is φ = 131618488.

The previous prime is 164523097. The next prime is 164523133. The reversal of 164523115 is 511325461.

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

It is an interprime number because it is at equal distance from previous prime (164523097) and next prime (164523133).

It is a cyclic number.

It is not a de Polignac number, because 164523115 - 2⁵ = 164523083 is a prime.

It is a Duffinian 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, 16452307 + ... + 16452316.

It is an arithmetic number, because the mean of its divisors is an integer number (49356936).

Almost surely, 2^164523115 is an apocalyptic number.

164523115 is a deficient number, since it is larger than the sum of its proper divisors (32904629).

164523115 is an equidigital number, since it uses as much as digits as its factorization.

164523115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32904628.

The product of its digits is 3600, while the sum is 28.

The square root of 164523115 is about 12826.6564232461. The cubic root of 164523115 is about 547.9517368741.

Adding to 164523115 its reverse (511325461), we get a palindrome (675848576).

The spelling of 164523115 in words is "one hundred sixty-four million, five hundred twenty-three thousand, one hundred fifteen".