164034427 has 4 divisors (see below), whose sum is σ = 165539440. Its totient is φ = 162529416.

The previous prime is 164034397. The next prime is 164034439. The reversal of 164034427 is 724430461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724430461 = 19 ⋅38127919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164034427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164034457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752343 + ... + 752560.

It is an arithmetic number, because the mean of its divisors is an integer number (41384860).

Almost surely, 2^164034427 is an apocalyptic number.

164034427 is a deficient number, since it is larger than the sum of its proper divisors (1505013).

164034427 is a wasteful number, since it uses less digits than its factorization.

164034427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505012.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 164034427 is about 12807.5925528571. The cubic root of 164034427 is about 547.4086662628.

Adding to 164034427 its reverse (724430461), we get a palindrome (888464888).

It can be divided in two parts, 164034 and 427, that added together give a palindrome (164461).

The spelling of 164034427 in words is "one hundred sixty-four million, thirty-four thousand, four hundred twenty-seven".