298157 has 2 divisors, whose sum is σ = 298158. Its totient is φ = 298156.

The previous prime is 298153. The next prime is 298159. The reversal of 298157 is 751892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292681 + 5476 = 541^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 298157 - 2² = 298153 is a prime.

Together with 298159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149078 + 149079.

It is an arithmetic number, because the mean of its divisors is an integer number (149079).

2²⁹⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

298157 is a deficient number, since it is larger than the sum of its proper divisors (1).

298157 is an equidigital number, since it uses as much as digits as its factorization.

298157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 298157 is about 546.0375444967. The cubic root of 298157 is about 66.8059283347.

The spelling of 298157 in words is "two hundred ninety-eight thousand, one hundred fifty-seven".