108211969 has 4 divisors (see below), whose sum is σ = 108234544. Its totient is φ = 108189396.

The previous prime is 108211967. The next prime is 108211991. The reversal of 108211969 is 969112801.

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 108211969 - 2¹ = 108211967 is a prime.

It is a super-2 number, since 2×108211969² = 23419660469713922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108211967) 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, 927 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (27058636).

Almost surely, 2^108211969 is an apocalyptic number.

It is an amenable number.

108211969 is a deficient number, since it is larger than the sum of its proper divisors (22575).

108211969 is an equidigital number, since it uses as much as digits as its factorization.

108211969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22574.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 108211969 is about 10402.4982095649. The cubic root of 108211969 is about 476.5316673680.

The spelling of 108211969 in words is "one hundred eight million, two hundred eleven thousand, nine hundred sixty-nine".