164525645 has 8 divisors (see below), whose sum is σ = 197839104. Its totient is φ = 131348304.

The previous prime is 164525593. The next prime is 164525657. The reversal of 164525645 is 546525461.

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 164525645 - 2¹⁰ = 164524621 is a prime.

It is a super-3 number, since 3×164525645³ (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 = 164525599 and 164525608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31349 + ... + 36218.

It is an arithmetic number, because the mean of its divisors is an integer number (24729888).

Almost surely, 2^164525645 is an apocalyptic number.

It is an amenable number.

164525645 is a deficient number, since it is larger than the sum of its proper divisors (33313459).

164525645 is an equidigital number, since it uses as much as digits as its factorization.

164525645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68059.

The product of its digits is 144000, while the sum is 38.

The square root of 164525645 is about 12826.7550456068. The cubic root of 164525645 is about 547.9545456198.

The spelling of 164525645 in words is "one hundred sixty-four million, five hundred twenty-five thousand, six hundred forty-five".