10198457 has 2 divisors, whose sum is σ = 10198458. Its totient is φ = 10198456.

The previous prime is 10198427. The next prime is 10198477. The reversal of 10198457 is 75489101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 92416 = 3179^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 10198457 - 2¹² = 10194361 is a prime.

It is not a weakly prime, because it can be changed into another prime (10198427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5099228 + 5099229.

It is an arithmetic number, because the mean of its divisors is an integer number (5099229).

Almost surely, 2^10198457 is an apocalyptic number.

It is an amenable number.

10198457 is a deficient number, since it is larger than the sum of its proper divisors (1).

10198457 is an equidigital number, since it uses as much as digits as its factorization.

10198457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 10198457 is about 3193.5023093776. The cubic root of 10198457 is about 216.8593523247.

The spelling of 10198457 in words is "ten million, one hundred ninety-eight thousand, four hundred fifty-seven".