164251465 has 16 divisors (see below), whose sum is σ = 225865728. Its totient is φ = 112326336.

The previous prime is 164251463. The next prime is 164251469. The reversal of 164251465 is 564152461.

It is a cyclic number.

It is not a de Polignac number, because 164251465 - 2¹ = 164251463 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 164251465.

It is not an unprimeable number, because it can be changed into a prime (164251463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7279 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (14116608).

Almost surely, 2^164251465 is an apocalyptic number.

It is an amenable number.

164251465 is a deficient number, since it is larger than the sum of its proper divisors (61614263).

164251465 is a wasteful number, since it uses less digits than its factorization.

164251465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12648.

The product of its digits is 28800, while the sum is 34.

The square root of 164251465 is about 12816.0627729424. The cubic root of 164251465 is about 547.6499898338.

The spelling of 164251465 in words is "one hundred sixty-four million, two hundred fifty-one thousand, four hundred sixty-five".