164788274 has 12 divisors (see below), whose sum is σ = 287538894. Its totient is φ = 70623504.

The previous prime is 164788249. The next prime is 164788297. The reversal of 164788274 is 472887461.

It can be written as a sum of positive squares in only one way, i.e., 150234049 + 14554225 = 12257^2 + 3815^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 840659 + ... + 840854.

Almost surely, 2^164788274 is an apocalyptic number.

164788274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

164788274 is a deficient number, since it is larger than the sum of its proper divisors (122750620).

164788274 is a wasteful number, since it uses less digits than its factorization.

164788274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681529 (or 1681522 counting only the distinct ones).

The product of its digits is 602112, while the sum is 47.

The square root of 164788274 is about 12836.9885097713. The cubic root of 164788274 is about 548.2459535830.

The spelling of 164788274 in words is "one hundred sixty-four million, seven hundred eighty-eight thousand, two hundred seventy-four".