164098425 has 12 divisors (see below), whose sum is σ = 271309520. Its totient is φ = 87519120.

The previous prime is 164098409. The next prime is 164098427. The reversal of 164098425 is 524890461.

It is not a de Polignac number, because 164098425 - 2⁴ = 164098409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164098427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1093915 + ... + 1094064.

Almost surely, 2^164098425 is an apocalyptic number.

164098425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164098425 is a deficient number, since it is larger than the sum of its proper divisors (107211095).

164098425 is a wasteful number, since it uses less digits than its factorization.

164098425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187992 (or 2187987 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 164098425 is about 12810.0907490931. The cubic root of 164098425 is about 547.4798474682.

The spelling of 164098425 in words is "one hundred sixty-four million, ninety-eight thousand, four hundred twenty-five".