164152784 has 20 divisors (see below), whose sum is σ = 318628416. Its totient is φ = 81926112.

The previous prime is 164152783. The next prime is 164152787. The reversal of 164152784 is 487251461.

It is a super-2 number, since 2×164152784² = 53892272989901312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164152783) 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, 104 + ... + 18119.

Almost surely, 2^164152784 is an apocalyptic number.

It is an amenable number.

164152784 is a deficient number, since it is larger than the sum of its proper divisors (154475632).

164152784 is a wasteful number, since it uses less digits than its factorization.

164152784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18794 (or 18788 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 164152784 is about 12812.2122992089. The cubic root of 164152784 is about 547.5402932474.

The spelling of 164152784 in words is "one hundred sixty-four million, one hundred fifty-two thousand, seven hundred eighty-four".