164124289 has 4 divisors (see below), whose sum is σ = 187570624. Its totient is φ = 140677956.

The previous prime is 164124287. The next prime is 164124319. The reversal of 164124289 is 982421461.

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: 982421461 = 7 ⋅140345923.

It is a cyclic number.

It is not a de Polignac number, because 164124289 - 2¹ = 164124287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164124287) 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, 11723157 + ... + 11723170.

It is an arithmetic number, because the mean of its divisors is an integer number (46892656).

Almost surely, 2^164124289 is an apocalyptic number.

It is an amenable number.

164124289 is a deficient number, since it is larger than the sum of its proper divisors (23446335).

164124289 is an equidigital number, since it uses as much as digits as its factorization.

164124289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23446334.

The product of its digits is 27648, while the sum is 37.

The square root of 164124289 is about 12811.1002259759. The cubic root of 164124289 is about 547.5086092208.

The spelling of 164124289 in words is "one hundred sixty-four million, one hundred twenty-four thousand, two hundred eighty-nine".