164445245 has 8 divisors (see below), whose sum is σ = 201533184. Its totient is φ = 128756944.

The previous prime is 164445241. The next prime is 164445277. The reversal of 164445245 is 542544461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164445245 - 2² = 164445241 is a prime.

It is a super-2 number, since 2×164445245² = 54084477206220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164445241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349649 + ... + 350118.

It is an arithmetic number, because the mean of its divisors is an integer number (25191648).

Almost surely, 2^164445245 is an apocalyptic number.

It is an amenable number.

164445245 is a deficient number, since it is larger than the sum of its proper divisors (37087939).

164445245 is an equidigital number, since it uses as much as digits as its factorization.

164445245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699819.

The product of its digits is 76800, while the sum is 35.

The square root of 164445245 is about 12823.6205885857. The cubic root of 164445245 is about 547.8652733694.

The spelling of 164445245 in words is "one hundred sixty-four million, four hundred forty-five thousand, two hundred forty-five".