100446091 has 2 divisors, whose sum is σ = 100446092. Its totient is φ = 100446090.

The previous prime is 100446079. The next prime is 100446109. The reversal of 100446091 is 190644001.

Together with next prime (100446109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100446091 is a prime.

It is not a weakly prime, because it can be changed into another prime (100446061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50223045 + 50223046.

It is an arithmetic number, because the mean of its divisors is an integer number (50223046).

Almost surely, 2^100446091 is an apocalyptic number.

100446091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100446091 is an equidigital number, since it uses as much as digits as its factorization.

100446091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 100446091 is about 10022.2797306800. The cubic root of 100446091 is about 464.8480499397.

The spelling of 100446091 in words is "one hundred million, four hundred forty-six thousand, ninety-one".