298246139 has 2 divisors, whose sum is σ = 298246140. Its totient is φ = 298246138.

The previous prime is 298246111. The next prime is 298246171. The reversal of 298246139 is 931642892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 298246139 - 2²⁴ = 281468923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 298246139.

It is not a weakly prime, because it can be changed into another prime (298240139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149123069 + 149123070.

It is an arithmetic number, because the mean of its divisors is an integer number (149123070).

Almost surely, 2^298246139 is an apocalyptic number.

298246139 is a deficient number, since it is larger than the sum of its proper divisors (1).

298246139 is an equidigital number, since it uses as much as digits as its factorization.

298246139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 298246139 is about 17269.8042548258. The cubic root of 298246139 is about 668.1258525292.

The spelling of 298246139 in words is "two hundred ninety-eight million, two hundred forty-six thousand, one hundred thirty-nine".