164075947 has 8 divisors (see below), whose sum is σ = 187773696. Its totient is φ = 140442792.

The previous prime is 164075927. The next prime is 164075953. The reversal of 164075947 is 749570461.

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

It is not a de Polignac number, because 164075947 - 2¹⁹ = 163551659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164075927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10573 + ... + 20974.

It is an arithmetic number, because the mean of its divisors is an integer number (23471712).

Almost surely, 2^164075947 is an apocalyptic number.

164075947 is a deficient number, since it is larger than the sum of its proper divisors (23697749).

164075947 is an equidigital number, since it uses as much as digits as its factorization.

164075947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32297.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 164075947 is about 12809.2133638253. The cubic root of 164075947 is about 547.4548486219.

The spelling of 164075947 in words is "one hundred sixty-four million, seventy-five thousand, nine hundred forty-seven".