164140125289 has 4 divisors (see below), whose sum is σ = 187588714624. Its totient is φ = 140691535956.

The previous prime is 164140125287. The next prime is 164140125307. The reversal of 164140125289 is 982521041461.

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.

It is a cyclic number.

It is not a de Polignac number, because 164140125289 - 2¹ = 164140125287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164140125283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11724294657 + ... + 11724294670.

It is an arithmetic number, because the mean of its divisors is an integer number (46897178656).

Almost surely, 2^164140125289 is an apocalyptic number.

It is an amenable number.

164140125289 is a deficient number, since it is larger than the sum of its proper divisors (23448589335).

164140125289 is an equidigital number, since it uses as much as digits as its factorization.

164140125289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23448589334.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 164140125289 in words is "one hundred sixty-four billion, one hundred forty million, one hundred twenty-five thousand, two hundred eighty-nine".