361308139 has 2 divisors, whose sum is σ = 361308140. Its totient is φ = 361308138.

The previous prime is 361308067. The next prime is 361308151. The reversal of 361308139 is 931803163.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 361308139 - 2¹⁵ = 361275371 is a prime.

It is not a weakly prime, because it can be changed into another prime (361308179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180654069 + 180654070.

It is an arithmetic number, because the mean of its divisors is an integer number (180654070).

Almost surely, 2^361308139 is an apocalyptic number.

361308139 is a deficient number, since it is larger than the sum of its proper divisors (1).

361308139 is an equidigital number, since it uses as much as digits as its factorization.

361308139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 361308139 is about 19008.1071914065. The cubic root of 361308139 is about 712.2392694923.

The spelling of 361308139 in words is "three hundred sixty-one million, three hundred eight thousand, one hundred thirty-nine".