858132101 has 2 divisors, whose sum is σ = 858132102. Its totient is φ = 858132100.

The previous prime is 858132031. The next prime is 858132109. The reversal of 858132101 is 101231858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 473932900 + 384199201 = 21770^2 + 19601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-858132101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858132109) 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, 429066050 + 429066051.

It is an arithmetic number, because the mean of its divisors is an integer number (429066051).

Almost surely, 2^858132101 is an apocalyptic number.

It is an amenable number.

858132101 is a deficient number, since it is larger than the sum of its proper divisors (1).

858132101 is an equidigital number, since it uses as much as digits as its factorization.

858132101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 858132101 is about 29293.8918718562. The cubic root of 858132101 is about 950.2795487563.

Adding to 858132101 its reverse (101231858), we get a palindrome (959363959).

The spelling of 858132101 in words is "eight hundred fifty-eight million, one hundred thirty-two thousand, one hundred one".