101873869 has 2 divisors, whose sum is σ = 101873870. Its totient is φ = 101873868.

The previous prime is 101873851. The next prime is 101873873. The reversal of 101873869 is 968378101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82628100 + 19245769 = 9090^2 + 4387^2 .

It is an emirp because it is prime and its reverse (968378101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101873869 - 2⁹ = 101873357 is a prime.

It is a super-2 number, since 2×101873869² = 20756570370058322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101873879) 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, 50936934 + 50936935.

It is an arithmetic number, because the mean of its divisors is an integer number (50936935).

Almost surely, 2^101873869 is an apocalyptic number.

It is an amenable number.

101873869 is a deficient number, since it is larger than the sum of its proper divisors (1).

101873869 is an equidigital number, since it uses as much as digits as its factorization.

101873869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 101873869 is about 10093.2585917532. The cubic root of 101873869 is about 467.0402033657.

The spelling of 101873869 in words is "one hundred one million, eight hundred seventy-three thousand, eight hundred sixty-nine".