106421177 has 2 divisors, whose sum is σ = 106421178. Its totient is φ = 106421176.

The previous prime is 106421167. The next prime is 106421179. The reversal of 106421177 is 771124601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97397161 + 9024016 = 9869^2 + 3004^2 .

It is a cyclic number.

It is not a de Polignac number, because 106421177 - 2⁸ = 106420921 is a prime.

It is a super-2 number, since 2×106421177² = 22650933828130658, which contains 22 as substring.

Together with 106421179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (106421179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53210588 + 53210589.

It is an arithmetic number, because the mean of its divisors is an integer number (53210589).

Almost surely, 2^106421177 is an apocalyptic number.

It is an amenable number.

106421177 is a deficient number, since it is larger than the sum of its proper divisors (1).

106421177 is an equidigital number, since it uses as much as digits as its factorization.

106421177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 106421177 is about 10316.0640265559. The cubic root of 106421177 is about 473.8883359010. Note that the first 3 decimals are identical.

Adding to 106421177 its reverse (771124601), we get a palindrome (877545778).

The spelling of 106421177 in words is "one hundred six million, four hundred twenty-one thousand, one hundred seventy-seven".