164365874 has 8 divisors (see below), whose sum is σ = 250228848. Its totient is φ = 80956260.

The previous prime is 164365871. The next prime is 164365921. The reversal of 164365874 is 478563461.

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

It is a super-2 number, since 2×164365874² = 54032281071567752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164365871) by changing a digit.

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, 613172 + ... + 613439.

It is an arithmetic number, because the mean of its divisors is an integer number (31278606).

Almost surely, 2^164365874 is an apocalyptic number.

164365874 is a deficient number, since it is larger than the sum of its proper divisors (85862974).

164365874 is a wasteful number, since it uses less digits than its factorization.

164365874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226680.

The product of its digits is 483840, while the sum is 44.

The square root of 164365874 is about 12820.5254962501. The cubic root of 164365874 is about 547.7771151244. Note that the first 3 decimals are identical.

The spelling of 164365874 in words is "one hundred sixty-four million, three hundred sixty-five thousand, eight hundred seventy-four".