164252635 has 4 divisors (see below), whose sum is σ = 197103168. Its totient is φ = 131402104.

The previous prime is 164252633. The next prime is 164252653. The reversal of 164252635 is 536252461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 536252461 = 113 ⋅4745597.

It is a cyclic number.

It is not a de Polignac number, because 164252635 - 2¹ = 164252633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164252635.

It is not an unprimeable number, because it can be changed into a prime (164252633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16425259 + ... + 16425268.

It is an arithmetic number, because the mean of its divisors is an integer number (49275792).

Almost surely, 2^164252635 is an apocalyptic number.

164252635 is a deficient number, since it is larger than the sum of its proper divisors (32850533).

164252635 is an equidigital number, since it uses as much as digits as its factorization.

164252635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32850532.

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

The square root of 164252635 is about 12816.1084187050. The cubic root of 164252635 is about 547.6512901753.

The spelling of 164252635 in words is "one hundred sixty-four million, two hundred fifty-two thousand, six hundred thirty-five".