100254197 has 2 divisors, whose sum is σ = 100254198. Its totient is φ = 100254196.

The previous prime is 100254191. The next prime is 100254233. The reversal of 100254197 is 791452001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81884401 + 18369796 = 9049^2 + 4286^2 .

It is an emirp because it is prime and its reverse (791452001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100254197 - 2¹⁶ = 100188661 is a prime.

It is a super-2 number, since 2×100254197² = 20101808032229618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100254191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50127098 + 50127099.

It is an arithmetic number, because the mean of its divisors is an integer number (50127099).

Almost surely, 2^100254197 is an apocalyptic number.

It is an amenable number.

100254197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100254197 is an equidigital number, since it uses as much as digits as its factorization.

100254197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 100254197 is about 10012.7017832351. The cubic root of 100254197 is about 464.5518432373.

The spelling of 100254197 in words is "one hundred million, two hundred fifty-four thousand, one hundred ninety-seven".