101271851 has 2 divisors, whose sum is σ = 101271852. Its totient is φ = 101271850.

The previous prime is 101271809. The next prime is 101271883. The reversal of 101271851 is 158172101.

It is a strong prime.

It is an emirp because it is prime and its reverse (158172101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101271851 - 2⁶ = 101271787 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101271851.

It is not a weakly prime, because it can be changed into another prime (101271151) 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, 50635925 + 50635926.

It is an arithmetic number, because the mean of its divisors is an integer number (50635926).

Almost surely, 2^101271851 is an apocalyptic number.

101271851 is a deficient number, since it is larger than the sum of its proper divisors (1).

101271851 is an equidigital number, since it uses as much as digits as its factorization.

101271851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 26.

The square root of 101271851 is about 10063.3916250934. The cubic root of 101271851 is about 466.1184024382.

The spelling of 101271851 in words is "one hundred one million, two hundred seventy-one thousand, eight hundred fifty-one".