106654621 has 2 divisors, whose sum is σ = 106654622. Its totient is φ = 106654620.

The previous prime is 106654589. The next prime is 106654627. The reversal of 106654621 is 126456601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62631396 + 44023225 = 7914^2 + 6635^2 .

It is an emirp because it is prime and its reverse (126456601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106654621 - 2⁵ = 106654589 is a prime.

It is a super-2 number, since 2×106654621² = 22750416361307282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106654627) 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, 53327310 + 53327311.

It is an arithmetic number, because the mean of its divisors is an integer number (53327311).

Almost surely, 2^106654621 is an apocalyptic number.

It is an amenable number.

106654621 is a deficient number, since it is larger than the sum of its proper divisors (1).

106654621 is an equidigital number, since it uses as much as digits as its factorization.

106654621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 106654621 is about 10327.3724150918. The cubic root of 106654621 is about 474.2345877803.

The spelling of 106654621 in words is "one hundred six million, six hundred fifty-four thousand, six hundred twenty-one".