202444139 has 2 divisors, whose sum is σ = 202444140. Its totient is φ = 202444138.

The previous prime is 202444127. The next prime is 202444169. The reversal of 202444139 is 931444202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202444139 - 2⁸ = 202443883 is a prime.

It is equal to p_11206856 and since 202444139 and 11206856 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (202444169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101222069 + 101222070.

It is an arithmetic number, because the mean of its divisors is an integer number (101222070).

Almost surely, 2^202444139 is an apocalyptic number.

202444139 is a deficient number, since it is larger than the sum of its proper divisors (1).

202444139 is an equidigital number, since it uses as much as digits as its factorization.

202444139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 202444139 is about 14228.2865799083. The cubic root of 202444139 is about 587.1761440683.

The spelling of 202444139 in words is "two hundred two million, four hundred forty-four thousand, one hundred thirty-nine".