197254019 has 2 divisors, whose sum is σ = 197254020. Its totient is φ = 197254018.

The previous prime is 197253997. The next prime is 197254033. The reversal of 197254019 is 910452791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197254019 - 2¹⁶ = 197188483 is a prime.

It is a super-2 number, since 2×197254019² = 77818296023304722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197254039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98627009 + 98627010.

It is an arithmetic number, because the mean of its divisors is an integer number (98627010).

Almost surely, 2^197254019 is an apocalyptic number.

197254019 is a deficient number, since it is larger than the sum of its proper divisors (1).

197254019 is an equidigital number, since it uses as much as digits as its factorization.

197254019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 197254019 is about 14044.7149846481. The cubic root of 197254019 is about 582.1147719079.

The spelling of 197254019 in words is "one hundred ninety-seven million, two hundred fifty-four thousand, nineteen".