164263525 has 12 divisors (see below), whose sum is σ = 204726852. Its totient is φ = 130739840.

The previous prime is 164263523. The next prime is 164263529. The reversal of 164263525 is 525362461.

It can be written as a sum of positive squares in 6 ways, for example, as 474721 + 163788804 = 689^2 + 12798^2 .

It is not a de Polignac number, because 164263525 - 2¹ = 164263523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164263523) 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, 11752 + ... + 21601.

It is an arithmetic number, because the mean of its divisors is an integer number (17060571).

Almost surely, 2^164263525 is an apocalyptic number.

It is an amenable number.

164263525 is a deficient number, since it is larger than the sum of its proper divisors (40463327).

164263525 is a wasteful number, since it uses less digits than its factorization.

164263525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33560 (or 33555 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 164263525 is about 12816.5332676196. The cubic root of 164263525 is about 547.6633930572.

The spelling of 164263525 in words is "one hundred sixty-four million, two hundred sixty-three thousand, five hundred twenty-five".