866349151 has 2 divisors, whose sum is σ = 866349152. Its totient is φ = 866349150.

The previous prime is 866349109. The next prime is 866349173. The reversal of 866349151 is 151943668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 866349151 - 2¹⁷ = 866218079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866349098 and 866349107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866349101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433174575 + 433174576.

It is an arithmetic number, because the mean of its divisors is an integer number (433174576).

Almost surely, 2^866349151 is an apocalyptic number.

866349151 is a deficient number, since it is larger than the sum of its proper divisors (1).

866349151 is an equidigital number, since it uses as much as digits as its factorization.

866349151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 866349151 is about 29433.8096582824. The cubic root of 866349151 is about 953.3030548384.

The spelling of 866349151 in words is "eight hundred sixty-six million, three hundred forty-nine thousand, one hundred fifty-one".