100354081 has 2 divisors, whose sum is σ = 100354082. Its totient is φ = 100354080.

The previous prime is 100354073. The next prime is 100354139. The reversal of 100354081 is 180453001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57517056 + 42837025 = 7584^2 + 6545^2 .

It is a cyclic number.

It is not a de Polignac number, because 100354081 - 2³ = 100354073 is a prime.

It is a super-2 number, since 2×100354081² = 20141883146709122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100354021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50177040 + 50177041.

It is an arithmetic number, because the mean of its divisors is an integer number (50177041).

Almost surely, 2^100354081 is an apocalyptic number.

It is an amenable number.

100354081 is a deficient number, since it is larger than the sum of its proper divisors (1).

100354081 is an equidigital number, since it uses as much as digits as its factorization.

100354081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 100354081 is about 10017.6884060146. The cubic root of 100354081 is about 464.7060708448.

The spelling of 100354081 in words is "one hundred million, three hundred fifty-four thousand, eighty-one".