100256417 has 2 divisors, whose sum is σ = 100256418. Its totient is φ = 100256416.

The previous prime is 100256411. The next prime is 100256501. The reversal of 100256417 is 714652001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62789776 + 37466641 = 7924^2 + 6121^2 .

It is a cyclic number.

It is not a de Polignac number, because 100256417 - 2¹⁴ = 100240033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100256411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50128208 + 50128209.

It is an arithmetic number, because the mean of its divisors is an integer number (50128209).

Almost surely, 2^100256417 is an apocalyptic number.

It is an amenable number.

100256417 is a deficient number, since it is larger than the sum of its proper divisors (1).

100256417 is an equidigital number, since it uses as much as digits as its factorization.

100256417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 100256417 is about 10012.8126418105. The cubic root of 100256417 is about 464.5552721793. Note that the first 3 decimals are identical.

The spelling of 100256417 in words is "one hundred million, two hundred fifty-six thousand, four hundred seventeen".