164364425 has 6 divisors (see below), whose sum is σ = 203811918. Its totient is φ = 131491520.

The previous prime is 164364407. The next prime is 164364443. The reversal of 164364425 is 524463461.

It is an interprime number because it is at equal distance from previous prime (164364407) and next prime (164364443).

It can be written as a sum of positive squares in 3 ways, for example, as 25030009 + 139334416 = 5003^2 + 11804^2 .

It is not a de Polignac number, because 164364425 - 2¹⁰ = 164363401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3287264 + ... + 3287313.

It is an arithmetic number, because the mean of its divisors is an integer number (33968653).

Almost surely, 2^164364425 is an apocalyptic number.

It is an amenable number.

164364425 is a deficient number, since it is larger than the sum of its proper divisors (39447493).

164364425 is an equidigital number, since it uses as much as digits as its factorization.

164364425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574587 (or 6574582 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 164364425 is about 12820.4689851815. The cubic root of 164364425 is about 547.7755054404.

The spelling of 164364425 in words is "one hundred sixty-four million, three hundred sixty-four thousand, four hundred twenty-five".