100899143 has 2 divisors, whose sum is σ = 100899144. Its totient is φ = 100899142.

The previous prime is 100899089. The next prime is 100899151. The reversal of 100899143 is 341998001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100899143 - 2¹⁴ = 100882759 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100899163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50449571 + 50449572.

It is an arithmetic number, because the mean of its divisors is an integer number (50449572).

Almost surely, 2^100899143 is an apocalyptic number.

100899143 is a deficient number, since it is larger than the sum of its proper divisors (1).

100899143 is an equidigital number, since it uses as much as digits as its factorization.

100899143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 100899143 is about 10044.8565445207. The cubic root of 100899143 is about 465.5458852896.

The spelling of 100899143 in words is "one hundred million, eight hundred ninety-nine thousand, one hundred forty-three".