164184749 has 4 divisors (see below), whose sum is σ = 164381280. Its totient is φ = 163988220.

The previous prime is 164184743. The next prime is 164184767. The reversal of 164184749 is 947481461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 947481461 = 22441 ⋅42221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164184749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164184743) 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, 97007 + ... + 98684.

It is an arithmetic number, because the mean of its divisors is an integer number (41095320).

Almost surely, 2^164184749 is an apocalyptic number.

It is an amenable number.

164184749 is a deficient number, since it is larger than the sum of its proper divisors (196531).

164184749 is an equidigital number, since it uses as much as digits as its factorization.

164184749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196530.

The product of its digits is 193536, while the sum is 44.

The square root of 164184749 is about 12813.4596811322. The cubic root of 164184749 is about 547.5758312569.

The spelling of 164184749 in words is "one hundred sixty-four million, one hundred eighty-four thousand, seven hundred forty-nine".