164435429 has 2 divisors, whose sum is σ = 164435430. Its totient is φ = 164435428.

The previous prime is 164435417. The next prime is 164435477. The reversal of 164435429 is 924534461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111872929 + 52562500 = 10577^2 + 7250^2 .

It is a cyclic number.

It is not a de Polignac number, because 164435429 - 2⁴ = 164435413 is a prime.

It is a super-3 number, since 3×164435429³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 164435392 and 164435401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164435729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82217714 + 82217715.

It is an arithmetic number, because the mean of its divisors is an integer number (82217715).

Almost surely, 2^164435429 is an apocalyptic number.

It is an amenable number.

164435429 is a deficient number, since it is larger than the sum of its proper divisors (1).

164435429 is an equidigital number, since it uses as much as digits as its factorization.

164435429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 164435429 is about 12823.2378516504. The cubic root of 164435429 is about 547.8543721673.

It can be divided in two parts, 1644 and 35429, that added together give a palindrome (37073).

The spelling of 164435429 in words is "one hundred sixty-four million, four hundred thirty-five thousand, four hundred twenty-nine".