164429545 has 12 divisors (see below), whose sum is σ = 229530564. Its totient is φ = 112751520.

The previous prime is 164429543. The next prime is 164429569. The reversal of 164429545 is 545924461.

It can be written as a sum of positive squares in 2 ways, for example, as 37258816 + 127170729 = 6104^2 + 11277^2 .

It is not a de Polignac number, because 164429545 - 2¹ = 164429543 is a prime.

It is a super-3 number, since 3×164429545³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164429498 and 164429507.

It is not an unprimeable number, because it can be changed into a prime (164429543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335326 + ... + 335815.

It is an arithmetic number, because the mean of its divisors is an integer number (19127547).

Almost surely, 2^164429545 is an apocalyptic number.

It is an amenable number.

164429545 is a deficient number, since it is larger than the sum of its proper divisors (65101019).

164429545 is an equidigital number, since it uses as much as digits as its factorization.

164429545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671160 (or 671153 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 164429545 is about 12823.0084223633. The cubic root of 164429545 is about 547.8478374572.

The spelling of 164429545 in words is "one hundred sixty-four million, four hundred twenty-nine thousand, five hundred forty-five".