164265069 has 4 divisors (see below), whose sum is σ = 219020096. Its totient is φ = 109510044.

The previous prime is 164265037. The next prime is 164265083. The reversal of 164265069 is 960562461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 164265069 - 2⁵ = 164265037 is a prime.

It is a super-2 number, since 2×164265069² = 53966025787149522, 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 (164263069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27377509 + ... + 27377514.

It is an arithmetic number, because the mean of its divisors is an integer number (54755024).

Almost surely, 2^164265069 is an apocalyptic number.

It is an amenable number.

164265069 is a deficient number, since it is larger than the sum of its proper divisors (54755027).

164265069 is an equidigital number, since it uses as much as digits as its factorization.

164265069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54755026.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 164265069 is about 12816.5935021752. The cubic root of 164265069 is about 547.6651089781.

The spelling of 164265069 in words is "one hundred sixty-four million, two hundred sixty-five thousand, sixty-nine".