101871893 has 2 divisors, whose sum is σ = 101871894. Its totient is φ = 101871892.

The previous prime is 101871877. The next prime is 101871911. The reversal of 101871893 is 398178101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101566084 + 305809 = 10078^2 + 553^2 .

It is a cyclic number.

It is not a de Polignac number, because 101871893 - 2⁴ = 101871877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101871823) 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, 50935946 + 50935947.

It is an arithmetic number, because the mean of its divisors is an integer number (50935947).

Almost surely, 2^101871893 is an apocalyptic number.

It is an amenable number.

101871893 is a deficient number, since it is larger than the sum of its proper divisors (1).

101871893 is an equidigital number, since it uses as much as digits as its factorization.

101871893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 101871893 is about 10093.1607041600. The cubic root of 101871893 is about 467.0371836924.

The spelling of 101871893 in words is "one hundred one million, eight hundred seventy-one thousand, eight hundred ninety-three".