163285429 has 4 divisors (see below), whose sum is σ = 163328076. Its totient is φ = 163242784.

The previous prime is 163285427. The next prime is 163285433. The reversal of 163285429 is 924582361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32182929 + 131102500 = 5673^2 + 11450^2 .

It is a cyclic number.

It is not a de Polignac number, because 163285429 - 2¹ = 163285427 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163285391 and 163285400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163285427) 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, 14944 + ... + 23449.

It is an arithmetic number, because the mean of its divisors is an integer number (40832019).

Almost surely, 2^163285429 is an apocalyptic number.

It is an amenable number.

163285429 is a deficient number, since it is larger than the sum of its proper divisors (42647).

163285429 is an equidigital number, since it uses as much as digits as its factorization.

163285429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42646.

The product of its digits is 103680, while the sum is 40.

The square root of 163285429 is about 12778.3187078739. The cubic root of 163285429 is about 546.5742202306.

The spelling of 163285429 in words is "one hundred sixty-three million, two hundred eighty-five thousand, four hundred twenty-nine".