298155019 has 2 divisors, whose sum is σ = 298155020. Its totient is φ = 298155018.

The previous prime is 298155017. The next prime is 298155029. The reversal of 298155019 is 910551892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 298155019 - 2¹ = 298155017 is a prime.

It is a super-2 number, since 2×298155019² = 177792830709780722, which contains 22 as substring.

Together with 298155017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (298155017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149077509 + 149077510.

It is an arithmetic number, because the mean of its divisors is an integer number (149077510).

Almost surely, 2^298155019 is an apocalyptic number.

298155019 is a deficient number, since it is larger than the sum of its proper divisors (1).

298155019 is an equidigital number, since it uses as much as digits as its factorization.

298155019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 298155019 is about 17267.1659226406. The cubic root of 298155019 is about 668.0578037816.

The spelling of 298155019 in words is "two hundred ninety-eight million, one hundred fifty-five thousand, nineteen".