100056643 has 2 divisors, whose sum is σ = 100056644. Its totient is φ = 100056642.

The previous prime is 100056599. The next prime is 100056673. The reversal of 100056643 is 346650001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100056643 - 2²⁵ = 66502211 is a prime.

It is a super-2 number, since 2×100056643² = 20022663616858898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100056673) 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, 50028321 + 50028322.

It is an arithmetic number, because the mean of its divisors is an integer number (50028322).

Almost surely, 2^100056643 is an apocalyptic number.

100056643 is a deficient number, since it is larger than the sum of its proper divisors (1).

100056643 is an equidigital number, since it uses as much as digits as its factorization.

100056643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 100056643 is about 10002.8317490599. The cubic root of 100056643 is about 464.2465046584.

The spelling of 100056643 in words is "one hundred million, fifty-six thousand, six hundred forty-three".