106861969 has 2 divisors, whose sum is σ = 106861970. Its totient is φ = 106861968.

The previous prime is 106861913. The next prime is 106861981. The reversal of 106861969 is 969168601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98247744 + 8614225 = 9912^2 + 2935^2 .

It is a cyclic number.

It is not a de Polignac number, because 106861969 - 2²⁵ = 73307537 is a prime.

It is a super-2 number, since 2×106861969² = 22838960837113922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106861169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53430984 + 53430985.

It is an arithmetic number, because the mean of its divisors is an integer number (53430985).

Almost surely, 2^106861969 is an apocalyptic number.

It is an amenable number.

106861969 is a deficient number, since it is larger than the sum of its proper divisors (1).

106861969 is an equidigital number, since it uses as much as digits as its factorization.

106861969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 106861969 is about 10337.4062994544. The cubic root of 106861969 is about 474.5417097745.

The spelling of 106861969 in words is "one hundred six million, eight hundred sixty-one thousand, nine hundred sixty-nine".