164945930 has 8 divisors (see below), whose sum is σ = 296902692. Its totient is φ = 65978368.

The previous prime is 164945923. The next prime is 164945969. The reversal of 164945930 is 39549461.

It can be written as a sum of positive squares in 2 ways, for example, as 152744881 + 12201049 = 12359^2 + 3493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8247287 + ... + 8247306.

Almost surely, 2^164945930 is an apocalyptic number.

164945930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164945930 is a deficient number, since it is larger than the sum of its proper divisors (131956762).

164945930 is a wasteful number, since it uses less digits than its factorization.

164945930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16494600.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 164945930 is about 12843.1277343177. The cubic root of 164945930 is about 548.4207368815.

The spelling of 164945930 in words is "one hundred sixty-four million, nine hundred forty-five thousand, nine hundred thirty".