201828239 has 2 divisors, whose sum is σ = 201828240. Its totient is φ = 201828238.

The previous prime is 201828227. The next prime is 201828257. The reversal of 201828239 is 932828102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201828239 - 2⁴ = 201828223 is a prime.

It is a super-2 number, since 2×201828239² = 81469276115682242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201828199 and 201828208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201828299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100914119 + 100914120.

It is an arithmetic number, because the mean of its divisors is an integer number (100914120).

Almost surely, 2^201828239 is an apocalyptic number.

201828239 is a deficient number, since it is larger than the sum of its proper divisors (1).

201828239 is an equidigital number, since it uses as much as digits as its factorization.

201828239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 201828239 is about 14206.6265876175. The cubic root of 201828239 is about 586.5800798018.

The spelling of 201828239 in words is "two hundred one million, eight hundred twenty-eight thousand, two hundred thirty-nine".