164335139 has 4 divisors (see below), whose sum is σ = 167435856. Its totient is φ = 161234424.

The previous prime is 164335117. The next prime is 164335151. The reversal of 164335139 is 931533461.

164335139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931533461 = 4969 ⋅187469.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164335139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164335099 and 164335108.

It is not an unprimeable number, because it can be changed into a prime (164335189) 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, 1550279 + ... + 1550384.

It is an arithmetic number, because the mean of its divisors is an integer number (41858964).

Almost surely, 2^164335139 is an apocalyptic number.

164335139 is a deficient number, since it is larger than the sum of its proper divisors (3100717).

164335139 is an equidigital number, since it uses as much as digits as its factorization.

164335139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100716.

The product of its digits is 29160, while the sum is 35.

The square root of 164335139 is about 12819.3267763951. The cubic root of 164335139 is about 547.7429697983.

The spelling of 164335139 in words is "one hundred sixty-four million, three hundred thirty-five thousand, one hundred thirty-nine".