164040199 has 4 divisors (see below), whose sum is σ = 167530464. Its totient is φ = 160549936.

The previous prime is 164040197. The next prime is 164040223. The reversal of 164040199 is 991040461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991040461 = 29 ⋅34173809.

It is a cyclic number.

It is not a de Polignac number, because 164040199 - 2¹ = 164040197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164040197) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1745062 + ... + 1745155.

It is an arithmetic number, because the mean of its divisors is an integer number (41882616).

Almost surely, 2^164040199 is an apocalyptic number.

164040199 is a deficient number, since it is larger than the sum of its proper divisors (3490265).

164040199 is an equidigital number, since it uses as much as digits as its factorization.

164040199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490264.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 164040199 is about 12807.8178859632. The cubic root of 164040199 is about 547.4150868779.

The spelling of 164040199 in words is "one hundred sixty-four million, forty thousand, one hundred ninety-nine".