164223345 has 32 divisors (see below), whose sum is σ = 308697984. Its totient is φ = 73497600.

The previous prime is 164223331. The next prime is 164223347. The reversal of 164223345 is 543322461.

It is not a de Polignac number, because 164223345 - 2⁴ = 164223329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164223347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36136 + ... + 40425.

It is an arithmetic number, because the mean of its divisors is an integer number (9646812).

Almost surely, 2^164223345 is an apocalyptic number.

164223345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164223345 is a deficient number, since it is larger than the sum of its proper divisors (144474639).

164223345 is a wasteful number, since it uses less digits than its factorization.

164223345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76593.

The product of its digits is 17280, while the sum is 30.

The square root of 164223345 is about 12814.9656651901. The cubic root of 164223345 is about 547.6187353249.

The spelling of 164223345 in words is "one hundred sixty-four million, two hundred twenty-three thousand, three hundred forty-five".