201029 has 4 divisors (see below), whose sum is σ = 204876. Its totient is φ = 197184.

The previous prime is 201011. The next prime is 201031. The reversal of 201029 is 920102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920102 = 2 ⋅460051.

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 112225 = 298^2 + 335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201029.

It is not an unprimeable number, because it can be changed into a prime (201049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (51219).

2²⁰¹⁰²⁹ is an apocalyptic number.

It is an amenable number.

201029 is a deficient number, since it is larger than the sum of its proper divisors (3847).

201029 is an equidigital number, since it uses as much as digits as its factorization.

201029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 201029 is about 448.3625764936. The cubic root of 201029 is about 58.5804770588.

The spelling of 201029 in words is "two hundred one thousand, twenty-nine".