100043149 has 2 divisors, whose sum is σ = 100043150. Its totient is φ = 100043148.

The previous prime is 100043131. The next prime is 100043159. The reversal of 100043149 is 941340001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99800100 + 243049 = 9990^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 100043149 - 2²¹ = 97945997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100043129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50021574 + 50021575.

It is an arithmetic number, because the mean of its divisors is an integer number (50021575).

Almost surely, 2^100043149 is an apocalyptic number.

It is an amenable number.

100043149 is a deficient number, since it is larger than the sum of its proper divisors (1).

100043149 is an equidigital number, since it uses as much as digits as its factorization.

100043149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 100043149 is about 10002.1572173207. The cubic root of 100043149 is about 464.2256337337.

The spelling of 100043149 in words is "one hundred million, forty-three thousand, one hundred forty-nine".