1005200239 has 4 divisors (see below), whose sum is σ = 1029717360. Its totient is φ = 980683120.

The previous prime is 1005200237. The next prime is 1005200243. The reversal of 1005200239 is 9320025001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005200239 - 2¹ = 1005200237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005200237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258499 + ... + 12258580.

It is an arithmetic number, because the mean of its divisors is an integer number (257429340).

Almost surely, 2^1005200239 is an apocalyptic number.

1005200239 is a deficient number, since it is larger than the sum of its proper divisors (24517121).

1005200239 is an equidigital number, since it uses as much as digits as its factorization.

1005200239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24517120.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1005200239 is about 31704.8929819989. The cubic root of 1005200239 is about 1001.7304169301.

The spelling of 1005200239 in words is "one billion, five million, two hundred thousand, two hundred thirty-nine".