164145469 has 8 divisors (see below), whose sum is σ = 165489408. Its totient is φ = 162806160.

The previous prime is 164145467. The next prime is 164145497. The reversal of 164145469 is 964541461.

164145469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 164145469 - 2¹ = 164145467 is a prime.

It is a super-2 number, since 2×164145469² = 53887469986459922, 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 (164145463) 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, 109644 + ... + 111130.

It is an arithmetic number, because the mean of its divisors is an integer number (20686176).

Almost surely, 2^164145469 is an apocalyptic number.

It is an amenable number.

164145469 is a deficient number, since it is larger than the sum of its proper divisors (1343939).

164145469 is a wasteful number, since it uses less digits than its factorization.

164145469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its digits is 103680, while the sum is 40.

The square root of 164145469 is about 12811.9268262038. The cubic root of 164145469 is about 547.5321599368.

The spelling of 164145469 in words is "one hundred sixty-four million, one hundred forty-five thousand, four hundred sixty-nine".