164352145 has 4 divisors (see below), whose sum is σ = 197222580. Its totient is φ = 131481712.

The previous prime is 164352121. The next prime is 164352157. The reversal of 164352145 is 541253461.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115799121 + 48553024 = 10761^2 + 6968^2 .

It is a cyclic number.

It is not a de Polignac number, because 164352145 - 2⁷ = 164352017 is a prime.

It is a super-2 number, since 2×164352145² = 54023255132202050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16435210 + ... + 16435219.

It is an arithmetic number, because the mean of its divisors is an integer number (49305645).

Almost surely, 2^164352145 is an apocalyptic number.

It is an amenable number.

164352145 is a deficient number, since it is larger than the sum of its proper divisors (32870435).

164352145 is an equidigital number, since it uses as much as digits as its factorization.

164352145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32870434.

The product of its digits is 14400, while the sum is 31.

The square root of 164352145 is about 12819.9900545983. The cubic root of 164352145 is about 547.7618632938.

The spelling of 164352145 in words is "one hundred sixty-four million, three hundred fifty-two thousand, one hundred forty-five".