101849149 has 2 divisors, whose sum is σ = 101849150. Its totient is φ = 101849148.

The previous prime is 101849119. The next prime is 101849171. The reversal of 101849149 is 941948101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98307225 + 3541924 = 9915^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 101849149 - 2²¹ = 99751997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101849119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50924574 + 50924575.

It is an arithmetic number, because the mean of its divisors is an integer number (50924575).

Almost surely, 2^101849149 is an apocalyptic number.

It is an amenable number.

101849149 is a deficient number, since it is larger than the sum of its proper divisors (1).

101849149 is an equidigital number, since it uses as much as digits as its factorization.

101849149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 101849149 is about 10092.0339377154. The cubic root of 101849149 is about 467.0024240742.

The spelling of 101849149 in words is "one hundred one million, eight hundred forty-nine thousand, one hundred forty-nine".