164312525 has 24 divisors (see below), whose sum is σ = 220652544. Its totient is φ = 120657600.

The previous prime is 164312441. The next prime is 164312539. The reversal of 164312525 is 525213461.

It is not a de Polignac number, because 164312525 - 2¹² = 164308429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60752 + ... + 63398.

It is an arithmetic number, because the mean of its divisors is an integer number (9193856).

Almost surely, 2^164312525 is an apocalyptic number.

It is an amenable number.

164312525 is a deficient number, since it is larger than the sum of its proper divisors (56340019).

164312525 is a wasteful number, since it uses less digits than its factorization.

164312525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2856 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 164312525 is about 12818.4447184516. Note that the first 3 decimals coincide. The cubic root of 164312525 is about 547.7178438518.

Adding to 164312525 its reverse (525213461), we get a palindrome (689525986).

The spelling of 164312525 in words is "one hundred sixty-four million, three hundred twelve thousand, five hundred twenty-five".