86122169 has 4 divisors (see below), whose sum is σ = 98425344. Its totient is φ = 73818996.

The previous prime is 86122147. The next prime is 86122171. The reversal of 86122169 is 96122168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86122169 - 2²⁴ = 69344953 is a prime.

It is a super-2 number, since 2×86122169² = 14834055986529122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86122139) 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 in 3 ways as a sum of consecutive naturals, for example, 6151577 + ... + 6151590.

It is an arithmetic number, because the mean of its divisors is an integer number (24606336).

Almost surely, 2^86122169 is an apocalyptic number.

It is an amenable number.

86122169 is a deficient number, since it is larger than the sum of its proper divisors (12303175).

86122169 is a wasteful number, since it uses less digits than its factorization.

86122169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12303174.

The product of its digits is 10368, while the sum is 35.

The square root of 86122169 is about 9280.2030688989. The cubic root of 86122169 is about 441.6094107496.

Subtracting 86122169 from its reverse (96122168), we obtain a palindrome (9999999).

The spelling of 86122169 in words is "eighty-six million, one hundred twenty-two thousand, one hundred sixty-nine".