200247139 has 2 divisors, whose sum is σ = 200247140. Its totient is φ = 200247138.

The previous prime is 200247127. The next prime is 200247161. The reversal of 200247139 is 931742002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200247139 is a prime.

It is not a weakly prime, because it can be changed into another prime (200247109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100123569 + 100123570.

It is an arithmetic number, because the mean of its divisors is an integer number (100123570).

Almost surely, 2^200247139 is an apocalyptic number.

200247139 is a deficient number, since it is larger than the sum of its proper divisors (1).

200247139 is an equidigital number, since it uses as much as digits as its factorization.

200247139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 200247139 is about 14150.8706092593. The cubic root of 200247139 is about 585.0443280993.

It can be divided in two parts, 2002 and 47139, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 200247139 in words is "two hundred million, two hundred forty-seven thousand, one hundred thirty-nine".