164851525 has 12 divisors (see below), whose sum is σ = 204656544. Its totient is φ = 131726000.

The previous prime is 164851523. The next prime is 164851537. The reversal of 164851525 is 525158461.

It is not a de Polignac number, because 164851525 - 2¹ = 164851523 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 (164851523) 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, 20880 + ... + 27670.

It is an arithmetic number, because the mean of its divisors is an integer number (17054712).

Almost surely, 2^164851525 is an apocalyptic number.

It is an amenable number.

164851525 is a deficient number, since it is larger than the sum of its proper divisors (39805019).

164851525 is an equidigital number, since it uses as much as digits as its factorization.

164851525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7772 (or 7767 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The square root of 164851525 is about 12839.4518964012. The cubic root of 164851525 is about 548.3160893764.

The spelling of 164851525 in words is "one hundred sixty-four million, eight hundred fifty-one thousand, five hundred twenty-five".