198475127 has 2 divisors, whose sum is σ = 198475128. Its totient is φ = 198475126.

The previous prime is 198475111. The next prime is 198475177. The reversal of 198475127 is 721574891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198475127 - 2⁴ = 198475111 is a prime.

It is a super-2 number, since 2×198475127² = 78784752075332258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198475177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99237563 + 99237564.

It is an arithmetic number, because the mean of its divisors is an integer number (99237564).

Almost surely, 2^198475127 is an apocalyptic number.

198475127 is a deficient number, since it is larger than the sum of its proper divisors (1).

198475127 is an equidigital number, since it uses as much as digits as its factorization.

198475127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 44.

The square root of 198475127 is about 14088.1200662118. The cubic root of 198475127 is about 583.3135024188.

The spelling of 198475127 in words is "one hundred ninety-eight million, four hundred seventy-five thousand, one hundred twenty-seven".