164120434 has 8 divisors (see below), whose sum is σ = 247021740. Its totient is φ = 81779856.

The previous prime is 164120413. The next prime is 164120441. The reversal of 164120434 is 434021461.

It can be written as a sum of positive squares in 2 ways, for example, as 136819809 + 27300625 = 11697^2 + 5225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 164120399 and 164120408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139449 + ... + 140620.

Almost surely, 2^164120434 is an apocalyptic number.

164120434 is a deficient number, since it is larger than the sum of its proper divisors (82901306).

164120434 is a wasteful number, since it uses less digits than its factorization.

164120434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280364.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 164120434 is about 12810.9497696307. The cubic root of 164120434 is about 547.5043225057.

Adding to 164120434 its reverse (434021461), we get a palindrome (598141895).

It can be divided in two parts, 164120 and 434, that multiplied together give a triangular number (71228080 = T₁₁₉₃₅).

The spelling of 164120434 in words is "one hundred sixty-four million, one hundred twenty thousand, four hundred thirty-four".